<h2>File Contents: /home/planet5/www/haylingdentist.co.uk/wp-content/plugins/google-sitemap-generator/sitemap-core.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/www/haylingdentist.co.uk/wp-content/plugins/google-sitemap-generator/sitemap-core.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
/**
 * Default sitemap core class
 *
 * @package Sitemap
 * @author  Arne Brachhold
 * @since   4.0
 */

use function Bhittani\StarRating\functions\sanitize;
/**
 * $Id: sitemap-core.php 2823802 2022-11-24 18:12:38Z auctollo $
 */

// Enable for dev! Good code doesn&#039;t generate any notices...
// error_reporting(E_ALL);
// ini_set(&#039;display_errors&#039;, 1); .


/**
 * Represents the status (successes and failures) of a ping process
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0b5
 */
class GoogleSitemapGeneratorStatus {

	/**
	 * Var start time of building process .
	 *
	 * @var float $_start_time The start time of the building process .
	 */
	private $start_time = 0;

	/**
	 * The end time of the building process.
	 *
	 * @var float $_end_time The end time of the building process
	 */
	private $end_time = 0;

	/**
	 * Holding an array with the results and information of the last ping .
	 *
	 * @var array Holding an array with the results and information of the last ping
	 */
	private $ping_results = array();

	/**
	 * If the status should be saved to the database automatically .
	 *
	 * @var bool If the status should be saved to the database automatically
	 */
	private $auto_save = true;

	/**
	 * Constructs a new status ued for saving the ping results
	 *
	 * @param string $auto_save .
	 */
	public function __construct( $auto_save = true ) {
		$this-&gt;start_time = microtime( true );

		$this-&gt;auto_save = $auto_save;

		if ( $auto_save ) {

			$exists = get_option( &#039;sm_status&#039; );

			if ( false === $exists ) {
				add_option( &#039;sm_status&#039;, &#039;&#039;, &#039;&#039;, &#039;no&#039; );
			}
			$this-&gt;save();
		}
	}

	/**
	 * Saves the status back to the database
	 */
	public function save() {
		update_option( &#039;sm_status&#039;, $this );
	}

	/**
	 * Returns the last saved status object or null
	 *
	 * @return GoogleSitemapGeneratorStatus
	 */
	public static function load() {
		$status = get_option( &#039;sm_status&#039; );
		if ( is_a( $status, &#039;GoogleSitemapGeneratorStatus&#039; ) ) {
			return $status;
		} else {
			return null;
		}
	}

	/**
	 * Ends the ping process
	 */
	public function end() {
		$this-&gt;end_time = microtime( true );
		if ( $this-&gt;auto_save ) {
			$this-&gt;save();
		}
	}

	/**
	 * Returns the duration of the ping process
	 *
	 * @return int
	 */
	public function get_duration() {
		return round( $this-&gt;end_time - $this-&gt;start_time, 2 );
	}

	/**
	 * Returns the time when the pings were started
	 *
	 * @return int
	 */
	public function get_start_time() {
		return round( $this-&gt;start_time, 2 );
	}

	/**
	 * Start ping .
	 *
	 * @param string $service string The internal name of the ping service .
	 * @param string $url string The URL to ping .
	 * @param string $name string The display name of the service .
	 * @return void
	 */
	public function start_ping( $service, $url, $name = null ) {
		$this-&gt;ping_results[ $service ] = array(
			&#039;start_time&#039; =&gt; microtime( true ),
			&#039;end_time&#039;   =&gt; 0,
			&#039;success&#039;    =&gt; false,
			&#039;url&#039;        =&gt; $url,
			&#039;name&#039;       =&gt; $name ? $name : $service,
		);

		if ( $this-&gt;auto_save ) {
			$this-&gt;save();
		}
	}

	/**
	 * End ping .
	 *
	 * @param string $service string The internal name of the ping service .
	 * @param string $success boolean If the ping was successful .
	 * @return void
	 */
	public function end_ping( $service, $success ) {
		$this-&gt;ping_results[ $service ][&#039;end_time&#039;] = microtime( true );
		$this-&gt;ping_results[ $service ][&#039;success&#039;]  = $success;

		if ( $this-&gt;auto_save ) {
			$this-&gt;save();
		}
	}

	/**
	 * Returns the duration of the last ping of a specific ping service
	 *
	 * @param string $service string The internal name of the ping service .
	 * @return float
	 */
	public function get_ping_duration( $service ) {
		$res = $this-&gt;ping_results[ $service ];
		return round( $res[&#039;end_time&#039;] - $res[&#039;start_time&#039;], 2 );
	}

	/**
	 * Returns the last result for a specific ping service
	 *
	 * @param string $service string The internal name of the ping service .
	 * @return array
	 */
	public function get_ping_result( $service ) {
		return $this-&gt;ping_results[ $service ][&#039;success&#039;];
	}

	/**
	 * Returns the URL for a specific ping service
	 *
	 * @param string $service string The internal name of the ping service .
	 * @return array
	 */
	public function get_ping_url( $service ) {
		return $this-&gt;ping_results[ $service ][&#039;url&#039;];
	}

	/**
	 * Returns the name for a specific ping service
	 *
	 * @param string $service string The internal name of the ping service .
	 * @return array
	 */
	public function get_service_name( $service ) {
		return $this-&gt;ping_results[ $service ][&#039;name&#039;];
	}

	/**
	 * Returns if a service was used in the last ping
	 *
	 * @param string $service string The internal name of the ping service .
	 * @return bool
	 */
	public function used_ping_service( $service ) {
		return array_key_exists( $service, $this-&gt;ping_results );
	}

	/**
	 * Returns the services which were used in the last ping
	 *
	 * @return array
	 */
	public function get_used_ping_services() {
		return array_keys( $this-&gt;ping_results );
	}
}

/**
 * Represents an item in the page list
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 */
class GoogleSitemapGeneratorPage {

	/**
	 * Sets the URL or the relative path to the site dir of the page .
	 *
	 * @var string $_url Sets the URL or the relative path to the site dir of the page
	 */
	public $url;

	/**
	 * Sets the priority of this page .
	 *
	 * @var float $_priority Sets the priority of this page
	 */
	public $priority;

	/**
	 * Sets the chanfe frequency of the page. I want Enums! .
	 *
	 * @var string $_change_freq Sets the chanfe frequency of the page. I want Enums!
	 */
	public $change_freq;

	/**
	 * Sets the last_mod date as a UNIX timestamp. .
	 *
	 * @var int $_last_mod Sets the last_mod date as a UNIX timestamp.
	 */
	public $last_mod;

	/**
	 * Sets the post ID in case this item is a WordPress post or page .
	 *
	 * @var int $_post_id Sets the post ID in case this item is a WordPress post or page
	 */
	public $post_id;

	/**
	 * Initialize a new page object
	 *
	 * @since 3.0
	 * @param string $url The URL or path of the file .
	 * @param float  $priority The Priority of the page 0.0 to 1.0 .
	 * @param string $change_freq The change frequency like daily, hourly, weekly .
	 * @param int    $last_mod The last mod date as a unix timestamp .
	 * @param int    $post_id The post ID of this page .
	 */
	public function __construct( $url = &#039;&#039;, $priority = 0.0, $change_freq = &#039;never&#039;, $last_mod = 0, $post_id = 0 ) {
		$this-&gt;set_url( $url );
		$this-&gt;set_priority( $priority );
		$this-&gt;set_change_freq( $change_freq );
		$this-&gt;set_last_mod( $last_mod );
		$this-&gt;set_post_id( $post_id );
	}

	/**
	 * Returns the URL of the page
	 *
	 * @return string The URL
	 */
	public function get_url() {
		return $this-&gt;url;
	}

	/**
	 * Sets the URL of the page
	 *
	 * @param string $url The new URL .
	 */
	public function set_url( $url ) {
		$this-&gt;url = (string) $url;
	}

	/**
	 * Returns the priority of this page
	 *
	 * @return float the priority, from 0.0 to 1.0
	 */
	public function get_priority() {
		return $this-&gt;priority;
	}

	/**
	 * Sets the priority of the page
	 *
	 * @param float $priority The new priority from 0.1 to 1.0 .
	 */
	public function set_priority( $priority ) {
		$this-&gt;priority = floatval( $priority );
	}

	/**
	 * Returns the change frequency of the page
	 *
	 * @return string The change frequncy like hourly, weekly, monthly etc.
	 */
	public function get_change_freq() {
		return $this-&gt;change_freq;
	}

	/**
	 * Sets the change frequency of the page
	 *
	 * @param string $change_freq The new change frequency .
	 */
	public function set_change_freq( $change_freq ) {
		$this-&gt;change_freq = (string) $change_freq;
	}

	/**
	 * Returns the last mod of the page
	 *
	 * @return int The lastmod value in seconds
	 */
	public function get_last_mod() {
		return $this-&gt;last_mod;
	}

	/**
	 * Sets the last mod of the page
	 *
	 * @param int $last_mod The lastmod of the page .
	 */
	public function set_last_mod( $last_mod ) {
		$this-&gt;last_mod = intval( $last_mod );
	}

	/**
	 * Returns the ID of the post
	 *
	 * @return int The post ID
	 */
	public function get_post_id() {
		return $this-&gt;post_id;
	}

	/**
	 * Sets the ID of the post
	 *
	 * @param int $post_id The new ID .
	 */
	public function set_post_id( $post_id ) {
		$this-&gt;post_id = intval( $post_id );
	}

	/**
	 * Render method .
	 */
	public function render() {

		if ( &#039;/&#039; === $this-&gt;url || empty( $this-&gt;url ) ) {
			return &#039;&#039;;
		}

		$r  = &#039;&#039;;
		$r .= &quot;\t&lt;url&gt;\n&quot;;
		$r .= &quot;\t\t&lt;loc&gt;&quot; . $this-&gt;escape_xml( esc_url_raw( $this-&gt;url ) ) . &quot;&lt;/loc&gt;\n&quot;;
		if ( $this-&gt;last_mod &gt; 0 ) {
			$r .= &quot;\t\t&lt;lastmod&gt;&quot; . gmdate( &#039;Y-m-d\TH:i:s+00:00&#039;, $this-&gt;last_mod ) . &quot;&lt;/lastmod&gt;\n&quot;;
		}
		if ( ! empty( $this-&gt;change_freq ) ) {
			$r .= &quot;\t\t&lt;changefreq&gt;&quot; . $this-&gt;change_freq . &quot;&lt;/changefreq&gt;\n&quot;;
		}
		if ( false !== $this-&gt;priority &amp;&amp; &#039;&#039; !== $this-&gt;priority ) {
			$r .= &quot;\t\t&lt;priority&gt;&quot; . number_format( $this-&gt;priority, 1 ) . &quot;&lt;/priority&gt;\n&quot;;
		}
		$r .= &quot;\t&lt;/url&gt;\n&quot;;
		return $r;
	}

	/**
	 * Escape xml .
	 *
	 * @param string $string .
	 */
	protected function escape_xml( $string ) {
		return str_replace( array( &#039;&amp;&#039;, &#039;&quot;&#039;, &#039;\&#039;&#039;, &#039;&lt;&#039;, &#039;&gt;&#039; ), array( &#039;&amp;amp;&#039;, &#039;&amp;quot;&#039;, &#039;&amp;apos;&#039;, &#039;&amp;lt;&#039;, &#039;&amp;gt;&#039; ), $string );
	}
}

/**
 * Represents an XML entry, like definitions
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 */
class GoogleSitemapGeneratorXmlEntry {

	/**
	 * Xml
	 *
	 * @var string $_xml .
	 */
	protected $xml;

	/**
	 * Constructor function
	 *
	 * @param string $xml .
	 */
	public function __construct( $xml ) {
		$this-&gt;xml = $xml;
	}

	/**
	 * Render function
	 */
	public function render() {
		return $this-&gt;xml;
	}
}

/**
 * Represents an comment
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 * @uses GoogleSitemapGeneratorXmlEntry
 */
class GoogleSitemapGeneratorDebugEntry extends GoogleSitemapGeneratorXmlEntry {
	/**
	 * Render function
	 */
	public function render() {
		return &#039;&lt;!-- &#039; . $this-&gt;xml . &quot; --&gt;\n&quot;;
	}
}

/**
 * Represents an item in the sitemap
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 */
class GoogleSitemapGeneratorSitemapEntry {

	/**
	 * Sets the URL or the relative path to the site dir of the page .
	 *
	 * @var string $_url Sets the URL or the relative path to the site dir of the page
	 */
	protected $url;

	/**
	 * Sets the last_mod date as a UNIX timestamp. .
	 *
	 * @var int $_last_mod Sets the last_mod date as a UNIX timestamp.
	 */
	protected $last_mod;

	/**
	 * Returns the URL of the page
	 *
	 * @return string The URL
	 */
	public function get_url() {
		return $this-&gt;url;
	}

	/**
	 * Sets the URL of the page
	 *
	 * @param string $url The new URL .
	 */
	public function set_url( $url ) {
		$this-&gt;url = (string) $url;
	}

	/**
	 * Returns the last mod of the page
	 *
	 * @return int The lastmod value in seconds
	 */
	public function get_last_mod() {
		return $this-&gt;last_mod;
	}

	/**
	 * Sets the last mod of the page
	 *
	 * @param int $last_mod The lastmod of the page .
	 */
	public function set_last_mod( $last_mod ) {
		$this-&gt;last_mod = intval( $last_mod );
	}
	/**
	 * Constructor
	 *
	 * @param string $url .
	 * @param int    $last_mod .
	 */
	public function __construct( $url = &#039;&#039;, $last_mod = 0 ) {
		$this-&gt;set_url( $url );
		$this-&gt;set_last_mod( $last_mod );
	}
	/**
	 * Render function
	 */
	public function render() {

		if ( &#039;/&#039; === $this-&gt;url || empty( $this-&gt;url ) ) {
			return &#039;&#039;;
		}

		$r  = &#039;&#039;;
		$r .= &quot;\t&lt;sitemap&gt;\n&quot;;
		$r .= &quot;\t\t&lt;loc&gt;&quot; . $this-&gt;escape_xml( esc_url_raw( $this-&gt;url ) ) . &quot;&lt;/loc&gt;\n&quot;;
		if ( $this-&gt;last_mod &gt; 0 ) {
			$r .= &quot;\t\t&lt;lastmod&gt;&quot; . gmdate( &#039;Y-m-d\TH:i:s+00:00&#039;, $this-&gt;last_mod ) . &quot;&lt;/lastmod&gt;\n&quot;;
		}
		$r .= &quot;\t&lt;/sitemap&gt;\n&quot;;
		return $r;
	}

	/**
	 * Escape_xml function .
	 *
	 * @param string $string .
	 */
	protected function escape_xml( $string ) {
		return str_replace( array( &#039;&amp;&#039;, &#039;\&#039;&#039;, &#039;\&#039;&#039;, &#039;&lt;&#039;, &#039;&gt;&#039; ), array( &#039;&amp;amp;&#039;, &#039;&amp;quot;&#039;, &#039;&amp;apos;&#039;, &#039;&amp;lt;&#039;, &#039;&amp;gt;&#039; ), $string );
	}
}

/**
 * Interface for all priority providers
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 */
interface Google_Sitemap_Generator_Prio_Provider_Base {

	/**
	 * Initializes a new priority provider
	 *
	 * @param int $total_comments int The total number of comments of all posts .
	 * @param int $total_posts int The total number of posts .
	 * @since 3.0
	 */
	public function __construct( $total_comments, $total_posts );

	/**
	 * Returns the (translated) name of this priority provider
	 *
	 * @since 3.0
	 * @return string The translated name
	 */
	public static function get_name();

	/**
	 * Returns the (translated) description of this priority provider
	 *
	 * @since 3.0
	 * @return string The translated description
	 */
	public static function get_description();

	/**
	 * Returns the priority for a specified post
	 *
	 * @param int $post_id int The ID of the post .
	 * @param int $comment_count int The number of comments for this post .
	 * @since 3.0
	 * @return int The calculated priority
	 */
	public function get_post_priority( $post_id, $comment_count );
}

/**
 * Priority Provider which calculates the priority based on the number of comments
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 */
class GoogleSitemapGeneratorPrioByCountProvider implements Google_Sitemap_Generator_Prio_Provider_Base {

	/**
	 * The total number of comments of all posts .
	 *
	 * @var int $total_comments The total number of comments of all posts
	 */
	protected $total_comments = 0;

	/**
	 * The total number of posts .
	 *
	 * @var int $total_posts The total number of posts
	 */
	protected $total_posts = 0;

	/**
	 * Initializes a new priority provider
	 *
	 * @param int $total_comments int The total number of comments of all posts .
	 * @param int $total_posts int The total number of posts .
	 * @since 3.0
	 */
	public function __construct( $total_comments, $total_posts ) {
		$this-&gt;total_comments = $total_comments;
		$this-&gt;total_posts    = $total_posts;
	}

	/**
	 * Returns the (translated) name of this priority provider
	 *
	 * @since 3.0
	 * @return string The translated name
	 */
	public static function get_name() {
		return __( &#039;Comment Count&#039;, &#039;sitemap&#039; );
	}

	/**
	 * Returns the (translated) description of this priority provider
	 *
	 * @since 3.0
	 * @return string The translated description
	 */
	public static function get_description() {
		return __( &#039;Uses the number of comments of the post to calculate the priority&#039;, &#039;sitemap&#039; );
	}

	/**
	 * Returns the priority for a specified post
	 *
	 * @param int $post_id int The ID of the post .
	 * @param int $comment_count int The number of comments for this post .
	 * @since 3.0
	 * @return int The calculated priority
	 */
	public function get_post_priority( $post_id, $comment_count ) {
		if ( $this-&gt;total_comments &gt; 0 &amp;&amp; $comment_count &gt; 0 ) {
			return round( ( $comment_count * 100 / $this-&gt;total_comments ) / 100, 1 );
		} else {
			return 0;
		}
	}
}

/**
 * Priority Provider which calculates the priority based on the average number of comments
 *
 * @author Arne Brachhold
 * @package sitemap
 * @since 3.0
 */
class GoogleSitemapGeneratorPrioByAverageProvider implements Google_Sitemap_Generator_Prio_Provider_Base {


	/**
	 * The total number of comments of all posts .
	 *
	 * @var int $total_comments The total number of comments of all posts
	 */
	protected $total_comments = 0;

	/**
	 * The total number of posts .
	 *
	 * @var int $total_comments The total number of posts
	 */
	protected $total_posts = 0;

	/**
	 * The average number of comments per post .
	 *
	 * @var int $average The average number of comments per post
	 */
	protected $average = 0.0;

	/**
	 * Returns the (translated) name of this priority provider
	 *
	 * @since 3.0
	 * @return string The translated name
	 */
	public static function get_name() {
		return __( &#039;Comment Average&#039;, &#039;sitemap&#039; );
	}

	/**
	 * Returns the (translated) description of this priority provider
	 *
	 * @since 3.0
	 * @return string The translated description
	 */
	public static function get_description() {
		return __( &#039;Uses the average comment count to calculate the priority&#039;, &#039;sitemap&#039; );
	}

	/**
	 * Initializes a new priority provider which calculates the post priority based on the average number of comments
	 *
	 * @param int $total_comments int The total number of comments of all posts .
	 * @param int $total_posts int The total number of posts .
	 * @since 3.0
	 */
	public function __construct( $total_comments, $total_posts ) {

		$this-&gt;total_comments = $total_comments;
		$this-&gt;total_posts    = $total_posts;

		if ( $this-&gt;total_comments &gt; 0 &amp;&amp; $this-&gt;total_posts &gt; 0 ) {
			$this-&gt;average = (float) $this-&gt;total_comments / $this-&gt;total_posts;
		}
	}

	/**
	 * Returns the priority for a specified post
	 *
	 * @param int $post_id int The ID of the post .
	 * @param int $comment_count int The number of comments for this post .
	 * @since 3.0
	 * @return int The calculated priority
	 */
	public function get_post_priority( $post_id, $comment_count ) {

		// Do not divide by zero !
		if ( 0 === $this-&gt;average ) {
			if ( $comment_count &gt; 0 ) {
				$priority = 1;
			} else {
				$priority = 0;
			}
		} else {
			$priority = $comment_count / $this-&gt;average;
			if ( $priority &gt; 1 ) {
				$priority = 1;
			} elseif ( $priority &lt; 0 ) {
				$priority = 0;
			}
		}

		return round( $priority, 1 );
	}
}

/**
 * Class to generate a sitemaps.org Sitemaps compliant sitemap of a WordPress site.
 *
 * @package sitemap
 * @author Arne Brachhold
 * @since 3.0
 */
final class GoogleSitemapGenerator {
	/**
	 * The unserialized array with the stored options .
	 *
	 * @var array The unserialized array with the stored options
	 */
	private $options = array();

	/**
	 * The saved additional pages .
	 *
	 * @var array The saved additional pages
	 */
	private $pages = array();

	/**
	 * The values and names of the change frequencies .
	 *
	 * @var array The values and names of the change frequencies
	 */
	private $freq_names = array();

	/**
	 * A list of class names which my be called for priority calculation .
	 *
	 * @var array A list of class names which my be called for priority calculation
	 */
	private $prio_providers = array();

	/**
	 * True if init complete (options loaded etc) .
	 *
	 * @var bool True if init complete (options loaded etc)
	 */
	private $is_initiated = false;

	/**
	 * Defines if the sitemap building process is active at the moment .
	 *
	 * @var bool Defines if the sitemap building process is active at the moment
	 */
	private $is_active = false;

	/**
	 * Holds options like output format and compression for the current request .
	 *
	 * @var array Holds options like output format and compression for the current request
	 */
	private $build_options = array();

	/**
	 * Holds the user interface object
	 *
	 * @since 3.1.1
	 * @var GoogleSitemapGeneratorUI
	 */
	private $ui = null;

	/**
	 * Defines if the simulation mode is on. In this case, data is not echoed but saved instead.
	 *
	 * @var boolean
	 */
	private $sim_mode = false;

	/**
	 * Holds the data if simulation mode is on
	 *
	 * @var array
	 */
	private $sim_data = array(
		&#039;sitemaps&#039; =&gt; array(),
		&#039;content&#039;  =&gt; array(),
	);

	/**
	 * Defines if the options have been loaded.
	 *
	 * @var bool Defines if the options have been loaded
	 */
	private $options_loaded = false;


	/*************************************** CONSTRUCTION AND INITIALIZING ***************************************/

	/**
	 * Initializes a new Google Sitemap Generator
	 *
	 * @since 4.0
	 */
	private function __construct() {
	}

	/**
	 * Returns the instance of the Sitemap Generator
	 *
	 * @since 3.0
	 * @return GoogleSitemapGenerator The instance or null if not available.
	 */
	public static function get_instance() {
		if ( isset( $GLOBALS[&#039;sm_instance&#039;] ) ) {
			return $GLOBALS[&#039;sm_instance&#039;];
		} else {
			return null;
		}
	}

	/**
	 * Enables the Google Sitemap Generator and registers the WordPress hooks
	 *
	 * @since 3.0
	 */
	public static function enable() {
		if ( ! isset( $GLOBALS[&#039;sm_instance&#039;] ) ) {
			$GLOBALS[&#039;sm_instance&#039;] = new GoogleSitemapGenerator();
		}
	}

	/**
	 * Loads up the configuration and validates the prioity providers
	 *
	 * This method is only called if the sitemaps needs to be build or the admin page is displayed.
	 *
	 * @since 3.0
	 */
	public function initate() {
		if ( ! $this-&gt;is_initiated ) {

			load_plugin_textdomain( &#039;sitemap&#039;, false, dirname( plugin_basename( __FILE__ ) ) . &#039;/lang&#039; );

			$this-&gt;freq_names = array(
				&#039;always&#039;  =&gt; __( &#039;Always&#039;, &#039;sitemap&#039; ),
				&#039;hourly&#039;  =&gt; __( &#039;Hourly&#039;, &#039;sitemap&#039; ),
				&#039;daily&#039;   =&gt; __( &#039;Daily&#039;, &#039;sitemap&#039; ),
				&#039;weekly&#039;  =&gt; __( &#039;Weekly&#039;, &#039;sitemap&#039; ),
				&#039;monthly&#039; =&gt; __( &#039;Monthly&#039;, &#039;sitemap&#039; ),
				&#039;yearly&#039;  =&gt; __( &#039;Yearly&#039;, &#039;sitemap&#039; ),
				&#039;never&#039;   =&gt; __( &#039;Never&#039;, &#039;sitemap&#039; ),
			);

			$this-&gt;load_options();
			$this-&gt;load_pages();

			// Register our own priority providers.
			add_filter( &#039;sm_add_prio_provider&#039;, array( $this, &#039;add_default_prio_providers&#039; ) );

			// Let other plugins register their providers.
			$r = apply_filters( &#039;sm_add_prio_provider&#039;, $this-&gt;prio_providers );

			// Check if no plugin return null.
			if ( null !== $r ) {
				$this-&gt;prio_providers = $r;
			}

			$this-&gt;validate_prio_providers();

			$this-&gt;is_initiated = true;
		}
	}


	/*************************************** VERSION AND LINK HELPERS ***************************************/

	/**
	 * Returns the version of the generator
	 *
	 * @since 3.0
	 * @return int The version
	 */
	public static function get_version() {
		return GoogleSitemapGeneratorLoader::get_version();
	}

	/**
	 * Returns the SVN version of the generator
	 *
	 * @since 4.0
	 * @return string The SVN version string
	 */
	public static function get_svn_version() {
		return GoogleSitemapGeneratorLoader::get_svn_version();
	}

	/**
	 * Returns a link pointing to a specific page of the authors website
	 *
	 * @since 3.0
	 * @param string $redir string The to link to .
	 * @return string The full url
	 */
	public static function get_redirect_link( $redir ) {
		return trailingslashit( &#039;http://url.auctollo.com/&#039; . $redir );
	}

	/**
	 * Returns a link pointing back to the plugin page in WordPress
	 *
	 * @since 3.0
	 * @param string $extra .
	 * @return string The full url
	 */
	public static function get_back_link( $extra = &#039;&#039; ) {
		global $wp_version;
		$url = admin_url( &#039;options-general.php?page=&#039; . GoogleSitemapGeneratorLoader::get_base_name() . $extra );
		return $url;
	}

	/**
	 * Converts a mysql datetime value into a unix timestamp
	 *
	 * @param string $mysql_date_time string The timestamp in the mysql datetime format .
	 * @return int The time in seconds
	 */
	public static function get_timestamp_from_my_sql( $mysql_date_time ) {
		list( $date, $hours)       = explode( &#039; &#039;, $mysql_date_time );
		list( $year, $month, $day) = explode( &#039;-&#039;, $date );
		list( $hour, $min, $sec)   = explode( &#039;:&#039;, $hours );
		return mktime( intval( $hour ), intval( $min ), intval( $sec ), intval( $month ), intval( $day ), intval( $year ) );
	}


	/*************************************** SIMPLE GETTERS ***************************************/

	/**
	 * Returns the names for the frequency values
	 *
	 * @return array
	 */
	public function get_freq_names() {
		return $this-&gt;freq_names;
	}

	/**
	 * Returns if the site is running in multi site mode
	 *
	 * @since 4.0
	 * @return bool
	 */
	public function is_multi_site() {
		return ( function_exists( &#039;is_multisite&#039; ) &amp;&amp; is_multisite() );
	}

	/**
	 * Returns if the sitemap building process is currently active
	 *
	 * @since 3.0
	 * @return bool true if active
	 */
	public function is_active() {
		$inst = self::get_instance();
		return ( null !== $inst &amp;&amp; $inst-&gt;is_active );
	}

	/**
	 * Returns if the compressed sitemap was activated
	 *
	 * @since 3.0b8
	 * @return true if compressed
	 */
	public function is_gzip_enabled() {
		return ( function_exists( &#039;gzwrite&#039; ) &amp;&amp; $this-&gt;get_option( &#039;b_autozip&#039; ) );
	}

	/**
	 * Returns if the XML Dom and XSLT functions are enabled
	 *
	 * @since 4.0b1
	 * @return true if compressed
	 */
	public function is_xsl_enabled() {
		return ( class_exists( &#039;DomDocument&#039; ) &amp;&amp; class_exists( &#039;XSLTProcessor&#039; ) );
	}

	/**
	 * Returns if Nginx is used as the server software
	 *
	 * @since 4.0.3
	 *
	 * @return bool
	 */
	public function is_nginx() {
		if ( isset( $_SERVER[&#039;SERVER_SOFTWARE&#039;] ) &amp;&amp; stristr( sanitize_text_field( wp_unslash( $_SERVER[&#039;SERVER_SOFTWARE&#039;] ) ), &#039;nginx&#039; ) !== false ) {
			return true;
		}
		return false;
	}


	/*************************************** TAXONOMIES AND CUSTOM POST TYPES ***************************************/

	/**
	 * Returns if this version of WordPress supports the new taxonomy system
	 *
	 * @since 3.0b8
	 * @return true if supported
	 */
	public function is_taxonomy_supported() {
		return ( function_exists( &#039;get_taxonomy&#039; ) &amp;&amp; function_exists( &#039;get_terms&#039; ) &amp;&amp; function_exists( &#039;get_taxonomies&#039; ) );
	}

	/**
	 * Returns the list of custom taxonomies. These are basically all taxonomies without categories and post tags
	 *
	 * @since 3.1.7
	 * @return array Array of names of user-defined taxonomies
	 */
	public function get_custom_taxonomies() {
		$taxonomies = get_taxonomies( array( &#039;public&#039; =&gt; 1 ) );
		return array_diff( $taxonomies, array( &#039;category&#039;, &#039;product_cat&#039;, &#039;post_tag&#039;, &#039;nav_menu&#039;, &#039;link_category&#039;, &#039;post_format&#039; ) );
	}

	/**
	 * Returns if this version of WordPress supports custom post types
	 *
	 * @since 3.2.5
	 * @return true if supported
	 */
	public function is_custom_post_types_supported() {
		return ( function_exists( &#039;get_post_types&#039; ) &amp;&amp; function_exists( &#039;register_post_type&#039; ) );
	}

	/**
	 * Returns the list of custom post types. These are all custom post types except post, page and attachment
	 *
	 * @since 3.2.5
	 * @return array Array of custom post types as per get_post_types
	 */
	public function get_custom_post_types() {
		$post_types = get_post_types( array( &#039;public&#039; =&gt; 1 ) );
		$post_types = array_diff( $post_types, array( &#039;post&#039;, &#039;page&#039;, &#039;attachment&#039; ) );
		return $post_types;
	}


	/**
	 * Returns the list of active post types, built-in and custom ones.
	 *
	 * @since 4.0b5
	 * @return array Array of custom post types as per get_post_types
	 */
	public function get_active_post_types() {

		$cache_key = __CLASS__ . &#039;::get_active_post_types&#039;;

		$active_post_types = wp_cache_get( $cache_key, &#039;sitemap&#039; );

		if ( false === $active_post_types ) {
			$all_post_types     = get_post_types();
			$enabled_post_types = $this-&gt;get_option( &#039;in_customtypes&#039; );
			if ( $this-&gt;get_option( &#039;in_posts&#039; ) ) {
				$enabled_post_types[] = &#039;post&#039;;
			}
			if ( $this-&gt;get_option( &#039;in_pages&#039; ) ) {
				$enabled_post_types[] = &#039;page&#039;;
			}

			$active_post_types = array();
			foreach ( $enabled_post_types as $post_type ) {
				if ( ! empty( $post_type ) &amp;&amp; in_array( $post_type, $all_post_types, true ) ) {
					$active_post_types[] = $post_type;
				}
			}

			wp_cache_set( $cache_key, $active_post_types, &#039;sitemap&#039;, 20 );
		}

		return $active_post_types;
	}

	/**
	 * Returns an array with all excluded post IDs
	 *
	 * @since 4.0b11
	 * @return int[] Array with excluded post IDs
	 */
	public function get_excluded_post_i_ds() {

		$excludes = (array) $this-&gt;get_option( &#039;b_exclude&#039; );

		return array_filter( array_map( &#039;intval&#039;, $excludes ), array( $this, &#039;is_greater_zero&#039; ) );
	}

	/**
	 * Robots disallowed
	 */
	public function robots_disallowed() {

		// parse url to retrieve host and path.
		$parsed = home_url();
		$rules  = array();

		// location of robots.txt file.
		try {
			if ( file_exists( $parsed . &#039;/robots.txt&#039; ) ) {
				$robotstxt = file( $parsed . &#039;/robots.txt&#039; );

			} elseif ( file_exists( ABSPATH . &#039;/robots.txt&#039; ) ) {
				// if there isn&#039;t a robots, then we&#039;re allowed in.
				$robotstxt = file( ABSPATH . &#039;/robots.txt&#039; );

			}
		} catch ( Exception $e ) {
			return $rules;
		}

		if ( empty( $robotstxt ) ) {
			return $rules;
		}

		foreach ( $robotstxt as $line ) {
			$line = trim( $line );
			// Skip blank lines .
			if ( ! $line ) {
				continue;
			}

			if ( preg_match( &#039;/^\s*Disallow:(.*)/i&#039;, $line, $regs ) ) {

				// An empty rule implies full access - no further tests required .
				if ( ! $regs[1] ) {
					continue;
				}

				// Add rules that apply to array for testing  .
				$id = url_to_postid( home_url( trim( $regs[1] ) ) );
				if ( $id &gt; 0 ) {
					$rules[] = $id;
				}
			}
		}

		return $rules;
	}
	/**
	 * Returns an array with all excluded category IDs.
	 *
	 * @since 4.0b11
	 * @return int[] Array with excluded category IDs
	 */
	public function get_excluded_category_i_ds() {
		$excl_cats = (array) $this-&gt;get_option( &#039;b_exclude_cats&#039; );
		return array_filter( array_map( &#039;intval&#039;, $excl_cats ), array( $this, &#039;is_greater_zero&#039; ) );
	}

	/*************************************** PRIORITY PROVIDERS ***************************************/

	/**
	 * Returns the list of PriorityProviders
	 *
	 * @return array
	 */
	public function get_prio_providers() {
		return $this-&gt;prio_providers;
	}

	/**
	 * Adds the default Priority Providers to the provider list
	 *
	 * @since 3.0
	 * @param array $providers .
	 * @return array
	 */
	public function add_default_prio_providers( $providers ) {
		array_push( $providers, &#039;GoogleSitemapGeneratorPrioByCountProvider&#039; );
		array_push( $providers, &#039;GoogleSitemapGeneratorPrioByAverageProvider&#039; );
		if ( class_exists( &#039;ak_popularity_contest&#039; ) ) {
			array_push( $providers, &#039;GoogleSitemapGeneratorPrioByPopularityContestProvider&#039; );
		}
		return $providers;
	}

	/**
	 * Validates all given Priority Providers by checking them for required methods and existence
	 *
	 * @since 3.0
	 */
	private function validate_prio_providers() {
		$valid_providers = array();
		$len             = count( $this-&gt;prio_providers );
		for ( $i = 0; $i &lt; $len; $i++ ) {
			if ( class_exists( $this-&gt;prio_providers[ $i ] ) ) {
				if ( class_implements( $this-&gt;prio_providers[ $i ], &#039;Google_Sitemap_Generator_Prio_Provider_Base&#039; ) ) {
					array_push( $valid_providers, $this-&gt;prio_providers[ $i ] );
				}
			}
		}
		$this-&gt;prio_providers = $valid_providers;

		if ( ! $this-&gt;get_option( &#039;b_prio_provider&#039; ) ) {
			if ( ! in_array( $this-&gt;get_option( &#039;b_prio_provider&#039; ), $this-&gt;prio_providers, true ) ) {
				$this-&gt;set_option( &#039;b_prio_provider&#039;, &#039;&#039; );
			}
		}
	}


	/*************************************** COMMENT HANDLING FOR PRIO. PROVIDERS ***************************************/

	/**
	 * Retrieves the number of comments of a post in a asso. array
	 * The key is the post_id, the value the number of comments
	 *
	 * @since 3.0
	 * @return array An array with post_ids and their comment count
	 */
	public function get_comments() {
		// @var $wpdb wpdb .
		global $wpdb;
		$comments = array();

		// Query comments and add them into the array .
		$comment_res = $wpdb-&gt;get_results( &#039;SELECT `comment_post_ID` as `post_id`, COUNT( comment_ID ) as `comment_count` FROM `&#039; . $wpdb-&gt;comments . &#039;` WHERE `comment_approved`=\&#039;1\&#039; GROUP BY `comment_post_ID`&#039; ); // db call ok; no-cache ok.
		if ( $comment_res ) {
			foreach ( $comment_res as $comment ) {
				$comments[ $comment-&gt;post_id ] = $comment-&gt;comment_count;
			}
		}
		return $comments;
	}

	/**
	 * Calculates the full number of comments from an sm_getComments() generated array
	 *
	 * @since 3.0
	 * @param object $comments array The Array with posts and c0mment count .
	 * @see sm_getComments
	 * @return int The full number of comments
	 */
	public function get_comment_count( $comments ) {
		$comment_count = 0;
		foreach ( $comments as $k =&gt; $v ) {
			$comment_count += $v;
		}
		return $comment_count;
	}


	/*************************************** OPTION HANDLING ***************************************/

	/**
	 * Sets up the default configuration
	 *
	 * @since 3.0
	 */
	public function init_options() {

		$this-&gt;options                       = array();
		$this-&gt;options[&#039;sm_b_prio_provider&#039;] = &#039;GoogleSitemapGeneratorPrioByCountProvider&#039;; // Provider for automatic priority calculation .
		$this-&gt;options[&#039;sm_b_ping&#039;]          = true; // Auto ping Google .
		$this-&gt;options[&#039;sm_b_stats&#039;]         = false; // Send anonymous stats .
		$this-&gt;options[&#039;sm_b_autozip&#039;]       = true; // Try to gzip the output .
		$this-&gt;options[&#039;sm_b_memory&#039;]        = &#039;&#039;; // Set Memory Limit (e.g. 16M) .
		$this-&gt;options[&#039;sm_b_time&#039;]          = -1; // Set time limit in seconds, 0 for unlimited, -1 for disabled .
		$this-&gt;options[&#039;sm_b_style_default&#039;] = true; // Use default style .
		$this-&gt;options[&#039;sm_b_style&#039;]         = &#039;&#039;; // Include a stylesheet in the XML .
		$this-&gt;options[&#039;sm_b_baseurl&#039;]       = &#039;&#039;; // The base URL of the sitemap .
		$this-&gt;options[&#039;sm_b_robots&#039;]        = true; // Add sitemap location to WordPress&#039; virtual robots.txt file .
		$this-&gt;options[&#039;sm_b_html&#039;]          = true; // Include a link to a html version of the sitemap in the XML sitemap .
		$this-&gt;options[&#039;sm_b_exclude&#039;]       = array(); // List of post / page IDs to exclude .
		$this-&gt;options[&#039;sm_b_exclude_cats&#039;]  = array(); // List of post / page IDs to exclude .

		$this-&gt;options[&#039;sm_in_home&#039;]        = true; // Include homepage .
		$this-&gt;options[&#039;sm_in_posts&#039;]       = true; // Include posts .
		$this-&gt;options[&#039;sm_in_posts_sub&#039;]   = false; // Include post pages (&lt;!--nextpage--&gt; tag) .
		$this-&gt;options[&#039;sm_in_pages&#039;]       = true; // Include static pages .
		$this-&gt;options[&#039;sm_in_cats&#039;]        = false; // Include categories .
		$this-&gt;options[&#039;sm_product_tags&#039;]   = true; // Hide product tags in sitemap .
		$this-&gt;options[&#039;sm_in_product_cat&#039;] = true; // Include product categories .
		$this-&gt;options[&#039;sm_in_arch&#039;]        = false; // Include archives .
		$this-&gt;options[&#039;sm_in_auth&#039;]        = false; // Include author pages .
		$this-&gt;options[&#039;sm_in_tags&#039;]        = false; // Include tag pages .
		$this-&gt;options[&#039;sm_in_tax&#039;]         = array(); // Include additional taxonomies .
		$this-&gt;options[&#039;sm_in_customtypes&#039;] = array(); // Include custom post types .
		$this-&gt;options[&#039;sm_in_lastmod&#039;]     = true; // Include the last modification date .
		$this-&gt;options[&#039;sm_b_sitemap_name&#039;] = &#039;sitemap&#039;; // Name of custom sitemap.
		$this-&gt;options[&#039;sm_b_old_sm_name&#039;]  = &#039;sitemap&#039;; // Name of previously defined sitemap.
		$this-&gt;options[&#039;sm_cf_home&#039;]        = &#039;daily&#039;; // Change frequency of the homepage .
		$this-&gt;options[&#039;sm_cf_posts&#039;]       = &#039;monthly&#039;; // Change frequency of posts .
		$this-&gt;options[&#039;sm_cf_pages&#039;]       = &#039;weekly&#039;; // Change frequency of static pages .
		$this-&gt;options[&#039;sm_cf_cats&#039;]        = &#039;weekly&#039;; // Change frequency of categories .
		$this-&gt;options[&#039;sm_cf_product_cat&#039;] = &#039;weekly&#039;; // Change frequency of categories .
		$this-&gt;options[&#039;sm_cf_auth&#039;]        = &#039;weekly&#039;; // Change frequency of author pages .
		$this-&gt;options[&#039;sm_cf_arch_curr&#039;]   = &#039;daily&#039;; // Change frequency of the current archive (this month) .
		$this-&gt;options[&#039;sm_cf_arch_old&#039;]    = &#039;yearly&#039;; // Change frequency of older archives .
		$this-&gt;options[&#039;sm_cf_tags&#039;]        = &#039;weekly&#039;; // Change frequency of tags .

		$this-&gt;options[&#039;sm_pr_home&#039;]        = 1.0; // Priority of the homepage .
		$this-&gt;options[&#039;sm_pr_posts&#039;]       = 0.6; // Priority of posts (if auto prio is disabled) .
		$this-&gt;options[&#039;sm_pr_posts_min&#039;]   = 0.2; // Minimum Priority of posts, even if autocalc is enabled .
		$this-&gt;options[&#039;sm_pr_pages&#039;]       = 0.6; // Priority of static pages .
		$this-&gt;options[&#039;sm_pr_cats&#039;]        = 0.3; // Priority of categories .
		$this-&gt;options[&#039;sm_pr_product_cat&#039;] = 0.3; // Priority of categories .
		$this-&gt;options[&#039;sm_pr_arch&#039;]        = 0.3; // Priority of archives .
		$this-&gt;options[&#039;sm_pr_auth&#039;]        = 0.3; // Priority of author pages .
		$this-&gt;options[&#039;sm_pr_tags&#039;]        = 0.3; // Priority of tags .

		$this-&gt;options[&#039;sm_i_donated&#039;]           = false; // Did you donate? Thank you! :) .
		$this-&gt;options[&#039;sm_i_hide_donated&#039;]      = false; // And hide the thank you.. .
		$this-&gt;options[&#039;sm_i_install_date&#039;]      = time(); // The installation date .
		$this-&gt;options[&#039;sm_i_hide_survey&#039;]       = false; // Hide the survey note .
		$this-&gt;options[&#039;sm_i_hide_note&#039;]         = false; // Hide the note which appears after 30 days .
		$this-&gt;options[&#039;sm_i_hide_works&#039;]        = false; // Hide the &#039;works?&#039; message which appears after 15 days .
		$this-&gt;options[&#039;sm_i_hide_donors&#039;]       = false; // Hide the list of donations .
		$this-&gt;options[&#039;sm_i_hash&#039;]              = substr( sha1( sha1( get_bloginfo( &#039;url&#039; ) ) ), 0, 20 ); // Partial hash for GA stats, NOT identifiable! .
		$this-&gt;options[&#039;sm_i_tid&#039;]               = &#039;&#039;;
		$this-&gt;options[&#039;sm_i_lastping&#039;]          = 0; // When was the last ping .
		$this-&gt;options[&#039;sm_i_supportfeed&#039;]       = true; // shows the support feed .
		$this-&gt;options[&#039;sm_i_supportfeed_cache&#039;] = 0; // Last refresh of support feed .
		$this-&gt;options[&#039;sm_links_page&#039;]          = 10; // Link per page support with default value 10. .
		$this-&gt;options[&#039;sm_user_consent&#039;]        = false;
	}

	/**
	 * Loads the configuration from the database
	 *
	 * @since 3.0
	 */
	private function load_options() {

		if ( $this-&gt;options_loaded ) {
			return;
		}

		$this-&gt;init_options();

		// First init default values, then overwrite it with stored values so we can add default
		// values with an update which get stored by the next edit.
		$stored_options = get_option( &#039;sm_options&#039; );

		if ( $stored_options &amp;&amp; is_array( $stored_options ) ) {
			foreach ( $stored_options as $k =&gt; $v ) {
				if ( array_key_exists( $k, $this-&gt;options ) ) {
					$this-&gt;options[ $k ] = $v;
				}
			}
		} else {
			update_option( &#039;sm_options&#039;, $this-&gt;options ); // First time use, store default values .
		}

		$this-&gt;options_loaded = true;
	}

	/**
	 * Returns the option value for the given key
	 *
	 * @since 3.0
	 * @param string $key string The Configuration Key .
	 * @return mixed The value
	 */
	public function get_option( $key ) {
		$key = &#039;sm_&#039; . $key;
		if ( array_key_exists( $key, $this-&gt;options ) ) {
			return $this-&gt;options[ $key ];
		} else {
			return null;
		}
	}
	/**
	 * Get options .
	 */
	public function get_options() {
		return $this-&gt;options;
	}

	/**
	 * Sets an option to a new value
	 *
	 * @since 3.0
	 * @param string $key string The configuration key .
	 * @param string $value mixed The new object .
	 */
	public function set_option( $key, $value ) {
		if ( 0 !== strpos( $key, &#039;sm_&#039; ) ) {
			$key = &#039;sm_&#039; . $key;
		}
		$this-&gt;options[ $key ] = $value;
	}

	/**
	 * Saves the options back to the database
	 *
	 * @since 3.0
	 * @return bool true on success
	 */
	public function save_options() {
		$oldvalue = get_option( &#039;sm_options&#039; );
		if ( $oldvalue === $this-&gt;options ) {
			return true;
		} else {
			return update_option( &#039;sm_options&#039;, $this-&gt;options );
		}
	}

	/**
	 * Returns the additional pages
	 *
	 * @since 4.0
	 * @return GoogleSitemapGeneratorPage[]
	 */
	public function get_pages() {
		return $this-&gt;pages;
	}

	/**
	 * Returns the additional pages
	 *
	 * @since 4.0
	 * @param array $pages .
	 */
	public function set_pages( array $pages ) {
		$this-&gt;pages = $pages;
	}

	/**
	 * Loads the stored pages from the database
	 *
	 * @since 3.0
	 */
	private function load_pages() {
		// @var $wpdb wpdb .
		global $wpdb;

		$needs_update = false;

		$pages_string = $wpdb-&gt;get_var( &quot;SELECT option_value FROM $wpdb-&gt;options WHERE option_name = &#039;sm_cpages&#039;&quot; ); // db call ok; no-cache ok.

		// Class sm_page was renamed with 3.0 -&gt; rename it in serialized value for compatibility .
		if ( ! empty( $pages_string ) &amp;&amp; strpos( $pages_string, &#039;sm_page&#039; ) !== false ) {
			$pages_string = str_replace( &#039;O:7:\&#039;sm_page\&#039;&#039;, &#039;O:26:\&#039;GoogleSitemapGeneratorPage\&#039;&#039;, $pages_string );
			$needs_update = true;
		}

		if ( ! empty( $pages_string ) ) {
			$storedpages = unserialize( $pages_string );
			$this-&gt;pages = $storedpages;
		} else {
			$this-&gt;pages = array();
		}

		if ( $needs_update ) {
			$this-&gt;save_pages();
		}
	}

	/**
	 * Saved the additional pages back to the database
	 *
	 * @since 3.0
	 * @return true on success
	 */
	public function save_pages() {
		$oldvalue = get_option( &#039;sm_cpages&#039; );
		if ( $oldvalue === $this-&gt;pages ) {
			return true;
		} else {
			delete_option( &#039;sm_cpages&#039; );
			// Add the option, Note the autoload=false because when the autoload happens, our class GoogleSitemapGeneratorPage doesn&#039;t exist .
			add_option( &#039;sm_cpages&#039;, $this-&gt;pages, &#039;&#039;, &#039;no&#039; );
			return true;
		}
	}


	/*************************************** URL AND PATH FUNCTIONS ***************************************/

	/**
	 * Returns the URL to the directory where the plugin file is located
	 *
	 * @since 3.0b5
	 * @return string The URL to the plugin directory
	 */
	public function get_plugin_url() {

		$url = trailingslashit( plugins_url( &#039;&#039;, __FILE__ ) );

		return $url;
	}

	/**
	 * Returns the path to the directory where the plugin file is located
	 *
	 * @since 3.0b5
	 * @return string The path to the plugin directory
	 */
	public function get_plugin_path() {
		$path = dirname( __FILE__ );
		return trailingslashit( str_replace( &#039;\\&#039;, &#039;/&#039;, $path ) );
	}

	/**
	 * Returns the URL to default XSLT style if it exists
	 *
	 * @since 3.0b5
	 * @return string The URL to the default stylesheet, empty string if not available.
	 */
	public function get_default_style() {
		$p = $this-&gt;get_plugin_path();
		if ( file_exists( $p . &#039;sitemap.xsl&#039; ) ) {
			$url = $this-&gt;get_plugin_url();
			// If called over the admin area using HTTPS, the stylesheet would also be https url, even if the site frontend is not.
			if ( substr( get_bloginfo( &#039;url&#039; ), 0, 5 ) !== &#039;https&#039; &amp;&amp; substr( $url, 0, 5 ) === &#039;https&#039; ) {
				$url = &#039;http&#039; . substr( $url, 5 );
			}
			if ( isset( $_SERVER[&#039;HTTP_HOST&#039;] ) ) {
				$host = sanitize_text_field( wp_unslash( $_SERVER[&#039;HTTP_HOST&#039;] ) );
			}
			$url = $this-&gt;get_xsl_url( $url, $host );
			return $url . &#039;sitemap.xsl&#039;;
		}
		return &#039;&#039;;
	}

	/**
	 * Returns of Permalinks are used
	 *
	 * @return bool
	 */
	public function is_using_permalinks() {
		// @var $wp_rewrite WP_Rewrite .
		global $wp_rewrite;

		return $wp_rewrite-&gt;using_mod_rewrite_permalinks();
	}

	/**
	 * Registers the plugin specific rewrite rules
	 *
	 * Combined: sitemap(-+([a-zA-Z0-9_-]+))?\.(xml|html)(.gz)?$
	 *
	 * @since 4.0
	 * @param string $wp_rules Array of existing rewrite rules.
	 * @return Array An array containing the new rewrite rules.
	 */
	public static function add_rewrite_rules( $wp_rules ) {
		$sm_sitemap_name = $GLOBALS[&#039;sm_instance&#039;]-&gt;get_option( &#039;b_sitemap_name&#039; );
		$sm_rules        = array(
			$sm_sitemap_name . &#039;(-+([a-zA-Z0-9_-]+))?\.xml$&#039; =&gt; &#039;index.php?xml_sitemap=params=$matches[2]&#039;,
			$sm_sitemap_name . &#039;(-+([a-zA-Z0-9_-]+))?\.xml\.gz$&#039; =&gt; &#039;index.php?xml_sitemap=params=$matches[2];zip=true&#039;,
			$sm_sitemap_name . &#039;(-+([a-zA-Z0-9_-]+))?\.html$&#039; =&gt; &#039;index.php?xml_sitemap=params=$matches[2];html=true&#039;,
			$sm_sitemap_name . &#039;(-+([a-zA-Z0-9_-]+))?\.html.gz$&#039; =&gt; &#039;index.php?xml_sitemap=params=$matches[2];html=true;zip=true&#039;,
		);
		return array_merge( $sm_rules, $wp_rules );
	}

	/**
	 * Adds the filters for wp rewrite rule adding
	 *
	 * @since 4.0
	 * @uses add_filter()
	 */
	public static function setup_rewrite_hooks() {
		add_filter( &#039;rewrite_rules_array&#039;, array( __CLASS__, &#039;add_rewrite_rules&#039; ), 1, 1 );
	}
	/**
	 * Removes the filters for wp rewrite rule adding
	 *
	 * @since 4.0
	 * @uses remove_filter()
	 */
	public static function remove_rewrite_hooks() {
		add_filter( &#039;rewrite_rules_array&#039;, array( __CLASS__, &#039;remove_rewrite_rules&#039; ), 1, 1 );
	}

	/**
	 * Deregisters the plugin specific rewrite rules
	 *
	 * Combined: sitemap(-+([a-zA-Z0-9_-]+))?\.(xml|html)(.gz)?$
	 *
	 * @since 4.0
	 * @param array $wp_rules Array of existing rewrite rules.
	 * @return Array An array containing the new rewrite rules
	 */
	public static function remove_rewrite_rules( $wp_rules ) {
		$sm_rules = array(
			&#039;sitemap(-+([a-zA-Z0-9_-]+))?\.xml$&#039;     =&gt; &#039;index.php?xml_sitemap=params=$matches[2]&#039;,
			&#039;sitemap(-+([a-zA-Z0-9_-]+))?\.xml\.gz$&#039; =&gt; &#039;index.php?xml_sitemap=params=$matches[2];zip=true&#039;,
			&#039;sitemap(-+([a-zA-Z0-9_-]+))?\.html$&#039;    =&gt; &#039;index.php?xml_sitemap=params=$matches[2];html=true&#039;,
			&#039;sitemap(-+([a-zA-Z0-9_-]+))?\.html.gz$&#039; =&gt; &#039;index.php?xml_sitemap=params=$matches[2];html=true;zip=true&#039;,
		);
		foreach ( $wp_rules as $key =&gt; $value ) {
			if ( array_key_exists( $key, $sm_rules ) ) {
				unset( $wp_rules[ $key ] );
			}
		}
		return $wp_rules;
	}

	/**
	 * Returns the URL for the sitemap file
	 *
	 * @since 3.0
	 *
	 * @param string $type .
	 * @param string $params .
	 * @param array  $build_options .
	 * @return string The URL to the Sitemap file
	 */
	public function get_xml_url( $type = &#039;&#039;, $params = &#039;&#039;, $build_options = array() ) {

		$pl      = $this-&gt;is_using_permalinks();
		$options = &#039;&#039;;
		if ( ! empty( $type ) ) {
			$options .= $type;
			if ( ! empty( $params ) ) {
				$options .= &#039;-&#039; . $params;
			}
		}

		$build_options = array_merge( $this-&gt;build_options, $build_options );

		$html = ( isset( $build_options[&#039;html&#039;] ) ? $build_options[&#039;html&#039;] : false );
		$zip  = ( isset( $build_options[&#039;zip&#039;] ) ? $build_options[&#039;zip&#039;] : false );

		$base_url = get_bloginfo( &#039;url&#039; );

		// Manual override for root URL .
		$base_url_settings = $this-&gt;get_option( &#039;b_baseurl&#039; );
		$sm_sitemap_name   = $this-&gt;get_option( &#039;b_sitemap_name&#039; );
		$old_sm_name       = $this-&gt;get_option( &#039;b_old_sm_name&#039; );
		if ( ! empty( $base_url_settings ) ) {
			$base_url = $base_url_settings;
		} elseif ( defined( &#039;SM_BASE_URL&#039; ) &amp;&amp; SM_BASE_URL ) {
			$base_url = SM_BASE_URL;
		}
		global $wp_rewrite;
		if ( $old_sm_name !== $sm_sitemap_name ) {
			$this-&gt;set_option( &#039;sm_b_old_sm_name&#039;, $sm_sitemap_name );
			delete_option( &#039;sm_rewrite_done&#039; );
			wp_clear_scheduled_hook( &#039;sm_ping_daily&#039; );
			self::remove_rewrite_hooks();
			$wp_rewrite-&gt;flush_rules( false );
			self::setup_rewrite_hooks();
			GoogleSitemapGeneratorLoader::activate_rewrite();
		}
		if ( $pl ) {
			return trailingslashit( $base_url ) . ( &#039;&#039; === $sm_sitemap_name ? &#039;sitemap&#039; : $sm_sitemap_name ) . ( $options ? &#039;-&#039; . $options : &#039;&#039; ) . ( $html
				? &#039;.html&#039; : &#039;.xml&#039; ) . ( $zip ? &#039;.gz&#039; : &#039;&#039; );
		} else {
			return trailingslashit( $base_url ) . &#039;index.php?xml_sitemap=params=&#039; . $options . ( $html
				? &#039;;html=true&#039; : &#039;&#039; ) . ( $zip ? &#039;;zip=true&#039; : &#039;&#039; );
		}
	}

	/**
	 * Returns if there is still an old sitemap file in the site directory
	 *
	 * @return Boolean True if a sitemap file still exists
	 */
	public function old_file_exists() {
		$sm_sitemap_name = $this-&gt;get_option( &#039;b_sitemap_name&#039; );
		$path            = trailingslashit( get_home_path() );
		return ( file_exists( $path . $sm_sitemap_name . &#039;.xml&#039; ) || file_exists( $path . &#039;sitemap.xml.gz&#039; ) );
	}

	/**
	 * Renames old sitemap files in the site directory from previous versions of this plugin
	 *
	 * @return bool True on success
	 */
	public function delete_old_files() {
		$path = trailingslashit( get_home_path() );

		$res = true;
		$f   = $path . &#039;sitemap.xml&#039;;
		if ( file_exists( $f ) ) {
			if ( ! rename( $f, $path . &#039;sitemap.backup.xml&#039; ) ) {
				$res = false;
			}
		}
		$f = $path . &#039;sitemap.xml.gz&#039;;
		if ( file_exists( $f ) ) {
			if ( ! rename( $f, $path . &#039;sitemap.backup.xml.gz&#039; ) ) {
				$res = false;
			}
		}

		return $res;
	}


	/*************************************** SITEMAP SIMULATION ***************************************/

	/**
	 * Simulates the building of the sitemap index file.
	 *
	 * @see GoogleSitemapGenerator::simulate_sitemap
	 * @since 4.0
	 * @return array The data of the sitemap index file
	 */
	public function simulate_index() {

		$this-&gt;sim_mode = true;

		require_once trailingslashit( dirname( __FILE__ ) ) . &#039;class-googlesitemapgeneratorstandardbuilder.php&#039;;
		do_action( &#039;sm_build_index&#039;, $this );

		$this-&gt;sim_mode = false;

		$r = $this-&gt;sim_data[&#039;sitemaps&#039;];

		$this-&gt;clear_sim_data( &#039;sitemaps&#039; );

		return $r;
	}

	/**
	 * Simulates the building of the sitemap file.
	 *
	 * @see GoogleSitemapGenerator::simulate_index
	 * @since 4.0
	 * @param string $type string The type of the sitemap .
	 * @param string $params string Additional parameters for this type .
	 * @return array The data of the sitemap file
	 */
	public function simulate_sitemap( $type, $params ) {
		$this-&gt;sim_mode = true;

		require_once trailingslashit( dirname( __FILE__ ) ) . &#039;class-googlesitemapgeneratorstandardbuilder.php&#039;;
		do_action( &#039;sm_build_content&#039;, $this, $type, $params );

		$this-&gt;sim_mode = false;

		$r = $this-&gt;sim_data[&#039;content&#039;];

		$this-&gt;clear_sim_data( &#039;content&#039; );

		return $r;
	}

	/**
	 * Clears the data of the simulation
	 *
	 * @param string $what Defines what to clear, either both, sitemaps or content .
	 * @see GoogleSitemapGenerator::simulate_index
	 * @see GoogleSitemapGenerator::simulate_sitemap
	 * @since 4.0
	 */
	public function clear_sim_data( $what ) {
		if ( &#039;both&#039; === $what || &#039;sitemaps&#039; === $what ) {
			$this-&gt;sim_data[&#039;sitemaps&#039;] = array();
		}

		if ( &#039;both&#039; === $what || &#039;content&#039; === $what ) {
			$this-&gt;sim_data[&#039;content&#039;] = array();
		}
	}

	/**
	 * Returns the first caller outside of this __CLASS__
	 *
	 * @param array $trace The backtrace .
	 * @return array The caller information
	 */
	private function get_external_backtrace( $trace ) {
		$caller = null;
		foreach ( $trace as $b ) {
			if ( __CLASS__ !== $b[&#039;class&#039;] ) {
				$caller = $b;
				break;
			}
		}
		return $caller;
	}


	/*************************************** SITEMAP BUILDING ***************************************/

	/**
	 * Shows the sitemap. Main entry point from HTTP
	 *
	 * @param string $options Options for the sitemap. What type, what parameters.
	 * @since 4.0
	 */
	public function show_sitemap( $options ) {

		$start_time    = microtime( true );
		$start_queries = $GLOBALS[&#039;wpdb&#039;]-&gt;num_queries;
		$start_memory  = memory_get_peak_usage( true );
		$disable_functions = ini_get( &#039;disable_functions&#039; );

		// Raise memory and time limits .
		if ( $this-&gt;get_option( &#039;b_memory&#039; ) !== &#039;&#039; ) {
			wp_raise_memory_limit( $this-&gt;get_option( &#039;b_memory&#039; ) );

		}
		if ( $this-&gt;get_option( &#039;b_time&#039; ) !== -1 &amp;&amp; $this-&gt;get_option( &#039;b_time&#039; ) !== null ) {
			if ( strpos( $disable_functions, &#039;set_time_limit&#039; ) === false ) {
				set_time_limit( $this-&gt;get_option( &#039;b_time&#039; ) );
			}
		}

		do_action( &#039;sm_init&#039;, $this );

		$this-&gt;is_active = true;

		$parsed_options = array();

		$options = explode( &#039;;&#039;, $options );
		foreach ( $options as $k ) {
			$kv                       = explode( &#039;=&#039;, $k );
			$parsed_options[ $kv[0] ] = $kv[1];
		}

		$options = $parsed_options;

		$this-&gt;build_options = $options;

		// Do not index the actual XML pages, only process them.
		// This avoids that the XML sitemaps show up in the search results.
		if ( ! headers_sent() ) {
			header( &#039;X-Robots-Tag: noindex&#039;, true, 200 );
		}

		$this-&gt;initate();

		$html = ( isset( $options[&#039;html&#039;] ) ? $options[&#039;html&#039;] : false ) &amp;&amp; $this-&gt;is_xsl_enabled();
		if ( $html &amp;&amp; ! $this-&gt;get_option( &#039;b_html&#039; ) ) {
			$GLOBALS[&#039;wp_query&#039;]-&gt;is_404 = true;
			return;
		}

		// Don&#039;t zip if anything happened before which could break the output or if the client does not support gzip.
		// If there are already other output filters, there might be some content on another
		// filter level already, which we can&#039;t detect. Zipping then would lead to invalid content.
		$pack = ( isset( $options[&#039;zip&#039;] ) ? $options[&#039;zip&#039;] : $this-&gt;get_option( &#039;b_autozip&#039; ) );
		if (
			empty( $_SERVER[&#039;HTTP_ACCEPT_ENCODING&#039;] ) // No encoding support.
			|| strpos( sanitize_text_field( wp_unslash( $_SERVER[&#039;HTTP_ACCEPT_ENCODING&#039;] ) ), &#039;gzip&#039; ) === false // or no gzip.
			|| ! $this-&gt;is_gzip_enabled() // No PHP gzip support.
			|| headers_sent() // Headers already sent.
			|| ob_get_contents() // there was already some output....
			|| in_array( &#039;ob_gzhandler&#039;, ob_list_handlers(), true ) // Some other plugin (or PHP) is already gzipping.
			|| $this-&gt;get_php_ini_boolean( ini_get( &#039;zlib.output_compression&#039; ) ) // Zlib compression in php.ini enabled.
			|| ob_get_level() &gt; ( ! $this-&gt;get_php_ini_boolean( ini_get( &#039;output_buffering&#039; ) ) ? 0 : 1 ) // Another output buffer (beside of the default one) is already active.
			|| ( isset( $_SERVER[&#039;HTTP_X_VARNISH&#039;] ) &amp;&amp; is_numeric( $_SERVER[&#039;HTTP_X_VARNISH&#039;] ) ) // Behind a Varnish proxy.
		) {
			$pack = false;
		}

		$packed = false;

		if ( $pack ) {
			$packed = ob_start( &#039;ob_gzhandler&#039; );
		}

		$builders = array( &#039;class-googlesitemapgeneratorstandardbuilder.php&#039; );
		foreach ( $builders as $b ) {
			$f = trailingslashit( dirname( __FILE__ ) ) . $b;
			if ( file_exists( $f ) ) {
				require_once $f;
			}
		}

		if ( $html ) {
			ob_start();
		} else {
			header( &#039;Content-Type: text/xml; charset=utf-8&#039; );
		}

		if ( empty( $options[&#039;params&#039;] ) || &#039;index&#039; === $options[&#039;params&#039;] ) {

			$this-&gt;build_sitemap_header( &#039;index&#039; );

			do_action( &#039;sm_build_index&#039;, $this );

			$this-&gt;build_sitemap_footer( &#039;index&#039; );
			$this-&gt;add_end_commend( $start_time, $start_queries, $start_memory );
		} else {
			$all_params = $options[&#039;params&#039;];
			$type       = null;
			$params     = null;
			if ( strpos( $all_params, &#039;-&#039; ) !== false ) {
				$type   = substr( $all_params, 0, strpos( $all_params, &#039;-&#039; ) );
				$params = substr( $all_params, strpos( $all_params, &#039;-&#039; ) + 1 );
			} else {
				$type = $all_params;
			}

			$this-&gt;build_sitemap_header( &#039;sitemap&#039; );

			do_action( &#039;sm_build_content&#039;, $this, $type, $params );

			$this-&gt;build_sitemap_footer( &#039;sitemap&#039; );

			$this-&gt;add_end_commend( $start_time, $start_queries, $start_memory );
		}

		if ( $html ) {
			$xml_source = ob_get_clean();

			// Load the XML source.
			$xml = new DOMDocument();
			$xml-&gt;loadXML( $xml_source );

			$xsl = new DOMDocument();
			$xsl-&gt;load( $this-&gt;get_plugin_path() . &#039;sitemap.xsl&#039; );

			// Configure the transformer.
			$proc = new XSLTProcessor();
			$proc-&gt;importStyleSheet( $xsl ); // Attach the xsl rules.

			$dom_tran_obj = $proc-&gt;transformToDoc( $xml );

			// This will also output doctype and comments at top level.
			// phpcs:disable
			global $allowedposttags;
			$allowed_atts = array(
				&#039;align&#039;      =&gt; array(),
				&#039;class&#039;      =&gt; array(),
				&#039;type&#039;       =&gt; array(),
				&#039;id&#039;         =&gt; array(),
				&#039;dir&#039;        =&gt; array(),
				&#039;lang&#039;       =&gt; array(),
				&#039;style&#039;      =&gt; array(),
				&#039;xml:lang&#039;   =&gt; array(),
				&#039;src&#039;        =&gt; array(),
				&#039;alt&#039;        =&gt; array(),
				&#039;href&#039;       =&gt; array(),
				&#039;rel&#039;        =&gt; array(),
				&#039;rev&#039;        =&gt; array(),
				&#039;target&#039;     =&gt; array(),
				&#039;novalidate&#039; =&gt; array(),
				&#039;type&#039;       =&gt; array(),
				&#039;value&#039;      =&gt; array(),
				&#039;name&#039;       =&gt; array(),
				&#039;tabindex&#039;   =&gt; array(),
				&#039;action&#039;     =&gt; array(),
				&#039;method&#039;     =&gt; array(),
				&#039;for&#039;        =&gt; array(),
				&#039;width&#039;      =&gt; array(),
				&#039;height&#039;     =&gt; array(),
				&#039;data&#039;       =&gt; array(),
				&#039;title&#039;      =&gt; array(),
			);
			$allowedposttags[&#039;form&#039;]     = $allowed_atts;
			$allowedposttags[&#039;label&#039;]    = $allowed_atts;
			$allowedposttags[&#039;input&#039;]    = $allowed_atts;
			$allowedposttags[&#039;textarea&#039;] = $allowed_atts;
			$allowedposttags[&#039;iframe&#039;]   = $allowed_atts;
			$allowedposttags[&#039;script&#039;]   = $allowed_atts;
			$allowedposttags[&#039;style&#039;]    = $allowed_atts;
			$allowedposttags[&#039;strong&#039;]   = $allowed_atts;
			$allowedposttags[&#039;small&#039;]    = $allowed_atts;
			$allowedposttags[&#039;table&#039;]    = $allowed_atts;
			$allowedposttags[&#039;span&#039;]     = $allowed_atts;
			$allowedposttags[&#039;abbr&#039;]     = $allowed_atts;
			$allowedposttags[&#039;code&#039;]     = $allowed_atts;
			$allowedposttags[&#039;pre&#039;]      = $allowed_atts;
			$allowedposttags[&#039;div&#039;]      = $allowed_atts;
			$allowedposttags[&#039;img&#039;]      = $allowed_atts;
			$allowedposttags[&#039;h1&#039;]       = $allowed_atts;
			$allowedposttags[&#039;h2&#039;]       = $allowed_atts;
			$allowedposttags[&#039;h3&#039;]       = $allowed_atts;
			$allowedposttags[&#039;h4&#039;]       = $allowed_atts;
			$allowedposttags[&#039;h5&#039;]       = $allowed_atts;
			$allowedposttags[&#039;h6&#039;]       = $allowed_atts;
			$allowedposttags[&#039;ol&#039;]       = $allowed_atts;
			$allowedposttags[&#039;ul&#039;]       = $allowed_atts;
			$allowedposttags[&#039;li&#039;]       = $allowed_atts;
			$allowedposttags[&#039;em&#039;]       = $allowed_atts;
			$allowedposttags[&#039;hr&#039;]       = $allowed_atts;
			$allowedposttags[&#039;br&#039;]       = $allowed_atts;
			$allowedposttags[&#039;tr&#039;]       = $allowed_atts;
			$allowedposttags[&#039;td&#039;]       = $allowed_atts;
			$allowedposttags[&#039;p&#039;]        = $allowed_atts;
			$allowedposttags[&#039;a&#039;]        = $allowed_atts;
			$allowedposttags[&#039;b&#039;]        = $allowed_atts;
			$allowedposttags[&#039;i&#039;]        = $allowed_atts;
			foreach ( $dom_tran_obj-&gt;childNodes as $node ) {
			// phpcs:enable
				echo wp_kses( $dom_tran_obj-&gt;saveXML( $node ), $allowedposttags ) . &quot;\n&quot;;
			}
		}

		if ( $packed ) {
			ob_end_flush();
		}
		$this-&gt;is_active = false;
		exit;
	}

	/**
	 * Generates the header for the sitemap with XML declarations, stylesheet and so on.
	 *
	 * @since 4.0
	 * @param string $format The format, either sitemap for a sitemap or index for the sitemap index .
	 */
	private function build_sitemap_header( $format ) {

		if ( ! in_array( $format, array( &#039;sitemap&#039;, &#039;index&#039; ), true ) ) {
			$format = &#039;sitemap&#039;;
		}
		$this-&gt;add_element( new GoogleSitemapGeneratorXmlEntry( &#039;&lt;?xml version=\&#039;1.0\&#039; encoding=\&#039;UTF-8\&#039;?&gt;&#039; ) );
		$style_sheet = ( $this-&gt;get_default_style() &amp;&amp; $this-&gt;get_option( &#039;b_style_default&#039; ) === true
				? $this-&gt;get_default_style() : $this-&gt;get_option( &#039;b_style&#039; ) );

		if ( ! empty( $style_sheet ) ) {
			$this-&gt;add_element( new GoogleSitemapGeneratorXmlEntry( &#039;&lt;&#039; . &#039;?xml-stylesheet type=\&#039;text/xsl\&#039; href=\&#039;&#039; . esc_url( $style_sheet ) . &#039;\&#039;?&gt;&#039; ) );
		}
		$this-&gt;add_element( new GoogleSitemapGeneratorDebugEntry( &#039;sitemap-generator-url=\&#039;http://www.arnebrachhold.de\&#039; sitemap-generator-version=\&#039;&#039; . $this-&gt;get_version() . &#039;\&#039;&#039; ) );
		$this-&gt;add_element( new GoogleSitemapGeneratorDebugEntry( &#039;generated-on=\&#039;&#039; . gmdate( get_option( &#039;date_format&#039; ) . &#039; &#039; . get_option( &#039;time_format&#039; ) ) . &#039;\&#039;&#039; ) );

		switch ( $format ) {
			case &#039;sitemap&#039;:
				$this-&gt;add_element( new GoogleSitemapGeneratorXmlEntry( &#039;&lt;urlset xmlns:xsi=\&#039;http://www.w3.org/2001/XMLSchema-instance\&#039; xsi:schemaLocation=\&#039;http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd\&#039; xmlns=\&#039;http://www.sitemaps.org/schemas/sitemap/0.9\&#039;&gt;&#039; ) );
				break;
			case &#039;index&#039;:
				$this-&gt;add_element( new GoogleSitemapGeneratorXmlEntry( &#039;&lt;sitemapindex xmlns:xsi=\&#039;http://www.w3.org/2001/XMLSchema-instance\&#039; xsi:schemaLocation=\&#039;http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/siteindex.xsd\&#039; xmlns=\&#039;http://www.sitemaps.org/schemas/sitemap/0.9\&#039;&gt;&#039; ) );
				break;
		}
	}

	/**
	 * Generates the footer for the sitemap with XML ending tag
	 *
	 * @since 4.0
	 * @param string $format The format, either sitemap for a sitemap or index for the sitemap index.
	 */
	private function build_sitemap_footer( $format ) {
		if ( ! in_array( $format, array( &#039;sitemap&#039;, &#039;index&#039; ), true ) ) {
			$format = &#039;sitemap&#039;;
		}
		switch ( $format ) {
			case &#039;sitemap&#039;:
				$this-&gt;add_element( new GoogleSitemapGeneratorXmlEntry( &#039;&lt;/urlset&gt;&#039; ) );
				break;
			case &#039;index&#039;:
				$this-&gt;add_element( new GoogleSitemapGeneratorXmlEntry( &#039;&lt;/sitemapindex&gt;&#039; ) );
				break;
		}
	}

	/**
	 * Adds information about time and memory usage to the sitemap
	 *
	 * @since 4.0
	 * @param float $start_time The microtime of the start .
	 * @param int   $start_queries .
	 * @param int   $start_memory .
	 */
	private function add_end_commend( $start_time, $start_queries = 0, $start_memory = 0 ) {
		if ( defined( &#039;WP_DEBUG&#039; ) &amp;&amp; WP_DEBUG ) {
			echo &#039;&lt;!-- &#039;;
			if ( defined( &#039;SAVEQUERIES&#039; ) &amp;&amp; SAVEQUERIES ) {
				echo &#039;&lt;pre&gt;&#039;;
				// phpcs:disable WordPress.PHP.DevelopmentFunctions
				var_dump( $GLOBALS[&#039;wpdb&#039;]-&gt;queries );
				  // phpcs:enable
				echo &#039;&lt;/pre&gt;&#039;;

				$total = 0;
				foreach ( $GLOBALS[&#039;wpdb&#039;]-&gt;queries as $q ) {
					$total += $q[1];
				}
				echo &#039;&lt;h4&gt;Total Query Time&lt;/h4&gt;&#039;;
				echo &#039;&lt;pre&gt;&#039; . count( $GLOBALS[&#039;wpdb&#039;]-&gt;queries ) . &#039; queries in &#039; . esc_html( round( $total, 2 ) ) . &#039; seconds.&lt;/pre&gt;&#039;;
			} else {
				echo &#039;&lt;p&gt;Please edit wp-db.inc.php in wp-includes and set SAVEQUERIES to true if you want to see the queries.&lt;/p&gt;&#039;;
			}
			echo &#039; --&gt; &#039;;
		}
		$end_time = microtime( true );
		$end_time = round( $end_time - $start_time, 2 );
		$this-&gt;add_element( new GoogleSitemapGeneratorDebugEntry( &#039;Request ID: &#039; . md5( microtime() ) . &#039;; Queries for sitemap: &#039; . ( $GLOBALS[&#039;wpdb&#039;]-&gt;num_queries - $start_queries ) . &#039;; Total queries: &#039; . $GLOBALS[&#039;wpdb&#039;]-&gt;num_queries . &#039;; Seconds: $end_time; Memory for sitemap: &#039; . ( ( memory_get_peak_usage( true ) - $start_memory ) / 1024 / 1024 ) . &#039;MB; Total memory: &#039; . ( memory_get_peak_usage( true ) / 1024 / 1024 ) . &#039;MB&#039; ) );
	}

	/**
	 * Adds the sitemap to the virtual robots.txt file
	 * This function is executed by WordPress with the do_robots hook
	 *
	 * @since 3.1.2
	 */
	public function do_robots() {
		$this-&gt;initate();
		if ( $this-&gt;get_option( &#039;b_robots&#039; ) === true ) {

			$sm_url = $this-&gt;get_xml_url();

			echo &quot;\nSitemap: &quot; . esc_url( $sm_url ) . &quot;\n&quot;;
		}
	}


	/*************************************** SITEMAP CONTENT BUILDING ***************************************/

	/**
	 * Outputs an element in the sitemap
	 *
	 * @since 3.0
	 * @param object $page GoogleSitemapGeneratorXmlEntry The element .
	 */
	public function add_element( $page ) {

		if ( empty( $page ) ) {
			return;
		}
		// phpcs:disable
		echo $page-&gt;render();
		// phpcs:enable
	}

	/**
	 * Adds a url to the sitemap. You can use this method or call add_element directly.
	 *
	 * @since 3.0
	 * @param int    $loc string The location (url) of the page .
	 * @param int    $last_mod int The last Modification time as a UNIX timestamp .
	 * @param string $change_freq string The change frequenty of the page, Valid values are &#039;always&#039;, &#039;hourly&#039;, &#039;daily&#039;, &#039;weekly&#039;, &#039;monthly&#039;, &#039;yearly&#039; and &#039;never&#039;. .
	 * @param float  $priority float The priority of the page, between 0.0 and 1.0 .
	 * @param int    $post_id int The post ID in case this is a post or page .
	 * @see add_element
	 */
	public function add_url( $loc, $last_mod = 0, $change_freq = &#039;monthly&#039;, $priority = 0.5, $post_id = 0 ) {
		// Strip out the last modification time if activated .
		if ( $this-&gt;get_option( &#039;in_lastmod&#039; ) === false ) {
			$last_mod = 0;
		}
		$page = new GoogleSitemapGeneratorPage( $loc, $priority, $change_freq, $last_mod, $post_id );

		do_action( &#039;sm_addurl&#039;, $page );

		if ( $this-&gt;sim_mode ) {
			// phpcs:disable WordPress.PHP.DevelopmentFunctions
			$caller = $this-&gt;get_external_backtrace( debug_backtrace() );
			// phpcs:enable
			$this-&gt;sim_data[&#039;content&#039;][] = array(
				&#039;data&#039;   =&gt; $page,
				&#039;caller&#039; =&gt; $caller,
			);
		} else {
			$this-&gt;add_element( $page );
		}
	}

	/**
	 * Add a sitemap entry to the index file
	 *
	 * @param string $type .
	 * @param string $params .
	 * @param int    $last_mod .
	 */
	public function add_sitemap( $type, $params = &#039;&#039;, $last_mod = 0 ) {

		$url = $this-&gt;get_xml_url( $type, $params );

		$sitemap = new GoogleSitemapGeneratorSitemapEntry( $url, $last_mod );

		do_action( &#039;sm_addsitemap&#039;, $sitemap );

		if ( $this-&gt;sim_mode ) {
			  // phpcs:disable WordPress.PHP.DevelopmentFunctions
			$caller = $this-&gt;get_external_backtrace( debug_backtrace() );
			  // phpcs:enable
			$this-&gt;sim_data[&#039;sitemaps&#039;][] = array(
				&#039;data&#039;   =&gt; $sitemap,
				&#039;type&#039;   =&gt; $type,
				&#039;params&#039; =&gt; $params,
				&#039;caller&#039; =&gt; $caller,
			);
		} else {
			$this-&gt;add_element( $sitemap );
		}
	}


	/*************************************** PINGS ***************************************/

	/**
	 * Sends the pings to the search engines
	 *
	 * @return GoogleSitemapGeneratorStatus The status object
	 */
	public function send_ping() {

		$this-&gt;load_options();

		$ping_url = $this-&gt;get_xml_url();

		$result = $this-&gt;execute_ping( $ping_url, true );

		$post_id = get_transient( &#039;sm_ping_post_id&#039; );

		if ( $post_id ) {

			require_once trailingslashit( dirname( __FILE__ ) ) . &#039;class-googlesitemapgeneratorstandardbuilder.php&#039;;

			$urls = array();

			$urls = apply_filters( &#039;sm_sitemap_for_post&#039;, $urls, $this, $post_id );
			if ( is_array( $urls ) &amp;&amp; count( $urls ) &gt; 0 ) {
				foreach ( $urls as $url ) {
					$this-&gt;execute_ping( $url, false );
				}
			}

			delete_transient( &#039;sm_ping_post_id&#039; );
		}

		return $result;
	}


	/**
	 * Execute Ping
	 *
	 * @param string $ping_url string The Sitemap URL to ping .
	 * @param bool   $update_status If the global ping status should be updated .
	 *
	 * @return \GoogleSitemapGeneratorStatus
	 */
	protected function execute_ping( $ping_url, $update_status = true ) {

		$status = new GoogleSitemapGeneratorStatus( $update_status );

		if ( $ping_url ) {
			$pings = array();

			if ( $this-&gt;get_option( &#039;b_ping&#039; ) ) {
				$pings[&#039;google&#039;] = array(
					&#039;name&#039;  =&gt; &#039;Google&#039;,
					&#039;url&#039;   =&gt; &#039;http://www.google.com/webmasters/sitemaps/ping?sitemap=%s&#039;,
					&#039;check&#039; =&gt; &#039;successfully&#039;,
				);
			}

			foreach ( $pings as $service_id =&gt; $service ) {
				$url = str_replace( &#039;%s&#039;, rawurlencode( $ping_url ), $service[&#039;url&#039;] );
				$status-&gt;start_ping( $service_id, $url, $service[&#039;name&#039;] );

				$pingres = $this-&gt;remote_open( $url );

				if ( null === $pingres || false === $pingres || false === strpos( $pingres, $service[&#039;check&#039;] ) ) {
					$status-&gt;end_ping( $service_id, false );
					// phpcs:disable WordPress.PHP.DevelopmentFunctions
					trigger_error( &#039;Failed to ping $service_id: &#039; . esc_html( htmlspecialchars( wp_strip_all_tags( $pingres ) ) ), E_USER_NOTICE );
					// phpcs:enable
				} else {
					$status-&gt;end_ping( $service_id, true );
				}
			}

			$this-&gt;set_option( &#039;i_lastping&#039;, time() );
			$this-&gt;save_options();
		}

		$status-&gt;end();

		return $status;
	}

	/**
	 * Tries to ping a specific service showing as much as debug output as possible
	 *
	 * @since 4.1
	 * @return array
	 */
	public function send_ping_all() {

		$this-&gt;load_options();

		$sitemaps = $this-&gt;simulate_index();

		$urls = array();

		$urls[] = $this-&gt;get_xml_url();

		foreach ( $sitemaps as $sitemap ) {

			// @var $s GoogleSitemapGeneratorSitemapEntry .
			$s = $sitemap[&#039;data&#039;];

			$urls[] = $s-&gt;get_url();
		}

		$results = array();

		$first = true;

		foreach ( $urls as $url ) {
			$status    = $this-&gt;execute_ping( $url, $first );
			$results[] = array(
				&#039;sitemap&#039; =&gt; $url,
				&#039;status&#039;  =&gt; $status,
			);
			$first     = false;
		}
		return $results;
	}

	/**
	 * Tries to ping a specific service showing as much as debug output as possible
	 *
	 * @since 3.1.9
	 * @return null
	 */
	public function show_ping_result() {

		check_admin_referer( &#039;sitemap&#039; );

		if ( ! current_user_can( &#039;administrator&#039; ) ) {
			echo &#039;&lt;p&gt;Please log in as admin&lt;/p&gt;&#039;;
			return;
		}

		$service = ! empty( $_GET[&#039;sm_ping_service&#039;] ) ? sanitize_text_field( wp_unslash( $_GET[&#039;sm_ping_service&#039;] ) ) : null;

		$status = GoogleSitemapGeneratorStatus::load();

		if ( ! $status ) {
			die( &#039;No build status yet. Write something first.&#039; );
		}

		$url = null;

		$services = $status-&gt;get_used_ping_services();

		if ( ! in_array( $service, $services, true ) ) {
			die( &#039;Invalid service&#039; );
		}

		$url = $status-&gt;get_ping_url( $service );

		if ( empty( $url ) ) {
			die( &#039;Invalid ping url&#039; );
		}

		echo &#039;&lt;html&gt;&lt;head&gt;&lt;title&gt;Ping Test&lt;/title&gt;&#039;;
		if ( function_exists( &#039;wp_admin_css&#039; ) ) {
			wp_admin_css( &#039;css/global&#039;, true );
		}
		echo &#039;&lt;/head&gt;&lt;body&gt;&lt;h1&gt;Ping Test&lt;/h1&gt;&#039;;

		echo &#039;&lt;p&gt;Trying to ping: &lt;a href=\&#039;&#039; . esc_url( $url ) . &#039;\&#039;&gt;&#039; . esc_html( $url ) . &#039;&lt;/a&gt;. The sections below should give you an idea whats going on.&lt;/p&gt;&#039;;

		// Try to get as much as debug / error output as possible .
		$err_level = error_reporting( E_ALL );
		if ( ! defined( &#039;WP_DEBUG_DISPLAY&#039; ) ) {
			define( &#039;WP_DEBUG_DISPLAY&#039;, true );
		}

		if ( ! defined( &#039;WP_DEBUG&#039; ) ) {
			define( &#039;WP_DEBUG&#039;, true );
		}

		echo &#039;&lt;h2&gt;Errors, Warnings, Notices:&lt;/h2&gt;&#039;;

		if ( WP_DEBUG === false ) {
			echo &#039;&lt;i&gt;WP_DEBUG was set to false somewhere before. You might not see all debug information until you remove this declaration!&lt;/i&gt;&lt;br /&gt;&#039;;
		}
		if ( ini_get( &#039;display_errors&#039; ) !== 1 ) {
			echo &#039;&lt;i&gt;Your display_errors setting currently prevents the plugin from showing errors here. Please check your webserver logfile instead.&lt;/i&gt;&lt;br /&gt;&#039;;
		}

		$res = $this-&gt;remote_open( $url );

		echo &#039;&lt;h2&gt;Result (text only):&lt;/h2&gt;&#039;;

		echo wp_kses(
			$res,
			array(
				&#039;a&#039;  =&gt; array( &#039;href&#039; =&gt; array() ),
				&#039;p&#039;  =&gt; array(),
				&#039;ul&#039; =&gt; array(),
				&#039;ol&#039; =&gt; array(),
				&#039;li&#039; =&gt; array(),
			)
		);

		echo &#039;&lt;h2&gt;Result (HTML):&lt;/h2&gt;&#039;;

		esc_html( htmlspecialchars( $res ) );

		// Revert back old values .
		// error_reporting( $err_level ); .
		echo &#039;&lt;/body&gt;&lt;/html&gt;&#039;;
		exit;
	}

	/**
	 * Opens a remote file using the WordPress API
	 *
	 * @since 3.0
	 * @param string $url string The URL to open .
	 * @param string $method string get or post .
	 * @param object $post_data array An array with key=&gt;value paris .
	 * @param int    $timeout int Timeout for the request, by default 10 .
	 * @return mixed False on error, the body of the response on success
	 */
	public static function remote_open( $url, $method = &#039;get&#039;, $post_data = null, $timeout = 10 ) {
		$options            = array();
		$options[&#039;timeout&#039;] = $timeout;

		if ( &#039;get&#039; === $method ) {
			$response = wp_remote_get( $url, $options );
		} else {
			$response = wp_remote_post(
				$url,
				array_merge(
					$options,
					array(
						&#039;body&#039; =&gt; $post_data,
					)
				)
			);
		}

		if ( is_wp_error( $response ) ) {
			$errs = $response-&gt;get_error_messages();
			$errs = htmlspecialchars( implode( &#039;; &#039;, $errs ) );
			// phpcs:disable WordPress.PHP.DevelopmentFunctions
			trigger_error( &#039;WP HTTP API Web Request failed: &#039; . esc_html( $errs ), E_USER_NOTICE );
			  // phpcs:enable
			return false;
		}

		return $response[&#039;body&#039;];
	}

	/**
	 * Sends anonymous statistics (disabled by default)
	 */
	private function send_stats() {
		global $wp_version, $wpdb;
		$post_count = $wpdb-&gt;get_var( &quot;SELECT COUNT(*) FROM {$wpdb-&gt;posts} p WHERE p.post_status=&#039;publish&#039;&quot; ); // db call ok; no-cache ok.

		// Send simple post count statistic to get an idea in which direction this plugin should be optimized .
		// Only a rough number is required, so we are rounding things up .
		if ( $post_count &lt;= 5 ) {
			$post_count = 5;
		} elseif ( $post_count &lt; 25 ) {
			$post_count = 10;
		} elseif ( $post_count &lt; 35 ) {
			$post_count = 25;
		} elseif ( $post_count &lt; 75 ) {
			$post_count = 50;
		} elseif ( $post_count &lt; 125 ) {
			$post_count = 100;
		} elseif ( $post_count &lt; 2000 ) {
			$post_count = round( $post_count / 200 ) * 200;
		} elseif ( $post_count &lt; 10000 ) {
			$post_count = round( $post_count / 1000 ) * 1000;
		} else {
			$post_count = round( $post_count / 10000 ) * 10000;
		}
		$user = wp_get_current_user();

		$post_data = array(
			&#039;v&#039;   =&gt; 1,
			&#039;tid&#039; =&gt; $this-&gt;get_option( &#039;i_tid&#039; ),
			&#039;cid&#039; =&gt; $this-&gt;get_option( &#039;i_hash&#039; ),
			&#039;aip&#039; =&gt; 1, // Anonymize .
			&#039;t&#039;   =&gt; &#039;event&#039;,
			&#039;ec&#039;  =&gt; &#039;ping&#039;,
			&#039;el&#039;  =&gt; &#039;settings_saved&#039;,
			&#039;ea&#039;  =&gt; &#039;auto&#039;,
			&#039;ev&#039;  =&gt; 1,
			&#039;cd1&#039; =&gt; $wp_version,
			&#039;cd2&#039; =&gt; $this-&gt;get_version(),
			&#039;cd3&#039; =&gt; PHP_VERSION,
			&#039;cd4&#039; =&gt; $post_count,
			&#039;cd5&#039; =&gt; $user-&gt;user_email,
			&#039;cd6&#039; =&gt; &#039;https://&#039; . $_SERVER[&#039;HTTP_HOST&#039;],
			&#039;ul&#039;  =&gt; get_bloginfo( &#039;language&#039; ),
		);

		$this-&gt;remote_open( &#039;http://www.google-analytics.com/collect&#039;, &#039;post&#039;, $post_data );
	}

	/**
	 * Returns the number of seconds the support feed should be cached (1 week)
	 *
	 * @return int The number of seconds
	 */
	public static function get_support_feed_cache_lifetime() {
		return 60 * 60 * 24 * 7;
	}

	/**
	 * Returns the SimplePie instance of the support feed
	 * The feed is cached for one week
	 *
	 * @return SimplePie|WP_Error
	 */
	public function get_support_feed() {

		$call_back = array( __CLASS__, &#039;get_support_feed_cache_lifetime&#039; );

		// Extend cache lifetime so we don&#039;t request the feed to often .
		add_filter( &#039;wp_feed_cache_transient_lifetime&#039;, $call_back );
		$result = fetch_feed( SM_SUPPORTFEED_URL );
		remove_filter( &#039;wp_feed_cache_transient_lifetime&#039;, $call_back );

		return $result;
	}

	/**
	 * Handles daily ping
	 */
	public function send_ping_daily() {

		$this-&gt;load_options();

		$blog_update = strtotime( get_lastpostdate( &#039;blog&#039; ) );
		$last_ping   = $this-&gt;get_option( &#039;i_lastping&#039; );
		$yesterday   = time() - ( 60 * 60 * 24 );

		if ( $blog_update &gt;= $yesterday &amp;&amp; ( 0 === $last_ping || $last_ping &lt;= $yesterday ) ) {
			$this-&gt;send_ping();
		}

		// Send statistics if enabled (disabled by default) .
		if ( $this-&gt;get_option( &#039;b_stats&#039; ) ) {
			$this-&gt;send_stats();
		}

		// Cache the support feed so there is no delay when loading the user interface .
		if ( $this-&gt;get_option( &#039;i_supportfeed&#039; ) ) {
			$last = $this-&gt;get_option( &#039;i_supportfeed_cache&#039; );
			if ( $last &lt;= ( time() - $this-&gt;get_support_feed_cache_lifetime() ) ) {
				$support_feed = $this-&gt;get_support_feed();
				if ( ! is_wp_error( $support_feed ) &amp;&amp; $support_feed ) {
					$this-&gt;set_option( &#039;i_supportfeed_cache&#039;, time() );
					$this-&gt;save_options();
				}
			}
		}
	}


	/*************************************** USER INTERFACE ***************************************/

	/**
	 * Includes the user interface class and initializes it
	 *
	 * @since 3.1.1
	 * @see GoogleSitemapGeneratorUI
	 * @return GoogleSitemapGeneratorUI
	 */
	private function get_ui() {

		if ( null === $this-&gt;ui ) {

			$class_name = &#039;GoogleSitemapGeneratorUI&#039;;
			$file_name  = &#039;class-googlesitemapgeneratorui.php&#039;;

			if ( ! class_exists( $class_name ) ) {

				$path = trailingslashit( dirname( __FILE__ ) );

				if ( ! file_exists( $path . $file_name ) ) {
					return false;
				}
				require_once $path . $file_name;
			}

			$this-&gt;ui = new $class_name( $this );
		}

		return $this-&gt;ui;
	}

	/**
	 * Shows the option page of the plugin. Before 3.1.1, this function was basically the UI, afterwards the UI was outsourced to another class
	 *
	 * @see GoogleSitemapGeneratorUI
	 * @since 3.0
	 * @return bool
	 */
	public function html_show_options_page() {

		$ui = $this-&gt;get_ui();
		if ( $ui ) {
			$ui-&gt;html_show_options_page();
			return true;
		}

		return false;
	}

	/*************************************** HELPERS ***************************************/

	/**
	 * Returns if the given value is greater than zero
	 *
	 * @param int $value int The value to check .
	 * @since 4.0b10
	 * @return bool True if greater than zero
	 */
	public function is_greater_zero( $value ) {
		return ( $value &gt; 0 );
	}

	/**
	 * Converts the various possible php.ini values for true and false to boolean
	 *
	 * @param string $value string The value from ini_get .
	 *
	 * @return bool The converted value
	 */
	public function get_php_ini_boolean( $value ) {
		if ( is_string( $value ) ) {
			switch ( strtolower( $value ) ) {
				case &#039;+&#039;:
				case &#039;1&#039;:
				case &#039;y&#039;:
				case &#039;on&#039;:
				case &#039;yes&#039;:
				case &#039;true&#039;:
				case &#039;enabled&#039;:
					return true;

				case &#039;-&#039;:
				case &#039;0&#039;:
				case &#039;n&#039;:
				case &#039;no&#039;:
				case &#039;off&#039;:
				case &#039;false&#039;:
				case &#039;disabled&#039;:
					return false;
			}
		}

		return (bool) $value;
	}


	/**
	 * Show surevey method .
	 */
	public function show_survey() {
		$this-&gt;load_options();
		if ( isset( $_REQUEST[&#039;sm_survey&#039;] ) ) {
			return ( sanitize_text_field( wp_unslash( $_REQUEST[&#039;sm_survey&#039;] ) ) ) || ! $this-&gt;get_option( &#039;i_hide_survey&#039; );
		}
	}

	/**
	 * Html survey method .
	 */
	public function html_survey() {
		?&gt;
		&lt;div class=&#039;updated&#039;&gt;
			&lt;strong&gt;
				&lt;p&gt;
					&lt;?php
					esc_html(
						str_replace(
							&#039;%s&#039;,
							&#039;https://w3edge.wufoo.com/forms/mex338s1ysw3i0/&#039;,
							/* translators: %s: search term */
							__( &#039;Thank you for using Google XML Sitemaps! &lt;a href=\&#039;%s\&#039; target=\&#039;_blank\&#039;&gt;Please help us improve by taking this short survey!&lt;/a&gt;&#039;, &#039;sitemap&#039; )
						)
					);
					?&gt;
					&lt;a href=&#039;&lt;?php esc_url( $this-&gt;get_back_link() ) . &#039;&amp;amp;sm_hide_survey=true&#039;; ?&gt;&#039; style=&#039;float:right; display:block; border:none;&#039;&gt;&lt;small style=&#039;font-weight:normal; &#039;&gt;&lt;?php esc_html_e( &#039;Don\&#039;t show this anymore&#039;, &#039;sitemap&#039; ); ?&gt;&lt;/small&gt;&lt;/a&gt;
				&lt;/p&gt;
			&lt;/strong&gt;
			&lt;div style=&#039;clear:right;&#039;&gt;&lt;/div&gt;
		&lt;/div&gt;
		&lt;?php
	}

	/**
	 * Get xsl url method .
	 *
	 * @param string $url .
	 * @param string $host .
	 */
	public function get_xsl_url( $url, $host ) {
		if ( substr( $host, 0, 4 ) === &#039;www.&#039; ) {
			if ( substr( get_bloginfo( &#039;url&#039; ), 0, 5 ) !== &#039;https&#039; ) {
				if ( strpos( $url, &#039;www.&#039; ) === false ) {
					$url = str_replace( &#039;http://&#039;, &#039;http://www.&#039;, $url );
				}
			} else {
				if ( strpos( $url, &#039;www.&#039; ) === false ) {
					$url = str_replace( &#039;https://&#039;, &#039;https://www.&#039;, $url );
				}
			}
		} else {
			if ( strpos( $url, &#039;www.&#039; ) !== false ) {
				$url = str_replace( &#039;://www.&#039;, &#039;://&#039;, $url );
			}
		}
		return $url;
	}
}
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