<h2>File Contents: /home/planet5/www/yanhuanghealthcare.co.uk/wp-includes/load.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/www/yanhuanghealthcare.co.uk/wp-includes/load.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php
/**
 * These functions are needed to load WordPress.
 *
 * @package WordPress
 */

/**
 * Returns the HTTP protocol sent by the server.
 *
 * @since 4.4.0
 *
 * @return string The HTTP protocol. Default: HTTP/1.0.
 */
function wp_get_server_protocol() {
	$protocol = isset( $_SERVER[&#039;SERVER_PROTOCOL&#039;] ) ? $_SERVER[&#039;SERVER_PROTOCOL&#039;] : &#039;&#039;;

	if ( ! in_array( $protocol, array( &#039;HTTP/1.1&#039;, &#039;HTTP/2&#039;, &#039;HTTP/2.0&#039;, &#039;HTTP/3&#039; ), true ) ) {
		$protocol = &#039;HTTP/1.0&#039;;
	}

	return $protocol;
}

/**
 * Fixes `$_SERVER` variables for various setups.
 *
 * @since 3.0.0
 * @access private
 *
 * @global string $PHP_SELF The filename of the currently executing script,
 *                          relative to the document root.
 */
function wp_fix_server_vars() {
	global $PHP_SELF;

	$default_server_values = array(
		&#039;SERVER_SOFTWARE&#039; =&gt; &#039;&#039;,
		&#039;REQUEST_URI&#039;     =&gt; &#039;&#039;,
	);

	$_SERVER = array_merge( $default_server_values, $_SERVER );

	// Fix for IIS when running with PHP ISAPI.
	if ( empty( $_SERVER[&#039;REQUEST_URI&#039;] )
		|| ( &#039;cgi-fcgi&#039; !== PHP_SAPI &amp;&amp; preg_match( &#039;/^Microsoft-IIS\//&#039;, $_SERVER[&#039;SERVER_SOFTWARE&#039;] ) )
	) {

		if ( isset( $_SERVER[&#039;HTTP_X_ORIGINAL_URL&#039;] ) ) {
			// IIS Mod-Rewrite.
			$_SERVER[&#039;REQUEST_URI&#039;] = $_SERVER[&#039;HTTP_X_ORIGINAL_URL&#039;];
		} elseif ( isset( $_SERVER[&#039;HTTP_X_REWRITE_URL&#039;] ) ) {
			// IIS Isapi_Rewrite.
			$_SERVER[&#039;REQUEST_URI&#039;] = $_SERVER[&#039;HTTP_X_REWRITE_URL&#039;];
		} else {
			// Use ORIG_PATH_INFO if there is no PATH_INFO.
			if ( ! isset( $_SERVER[&#039;PATH_INFO&#039;] ) &amp;&amp; isset( $_SERVER[&#039;ORIG_PATH_INFO&#039;] ) ) {
				$_SERVER[&#039;PATH_INFO&#039;] = $_SERVER[&#039;ORIG_PATH_INFO&#039;];
			}

			// Some IIS + PHP configurations put the script-name in the path-info (no need to append it twice).
			if ( isset( $_SERVER[&#039;PATH_INFO&#039;] ) ) {
				if ( $_SERVER[&#039;PATH_INFO&#039;] === $_SERVER[&#039;SCRIPT_NAME&#039;] ) {
					$_SERVER[&#039;REQUEST_URI&#039;] = $_SERVER[&#039;PATH_INFO&#039;];
				} else {
					$_SERVER[&#039;REQUEST_URI&#039;] = $_SERVER[&#039;SCRIPT_NAME&#039;] . $_SERVER[&#039;PATH_INFO&#039;];
				}
			}

			// Append the query string if it exists and isn&#039;t null.
			if ( ! empty( $_SERVER[&#039;QUERY_STRING&#039;] ) ) {
				$_SERVER[&#039;REQUEST_URI&#039;] .= &#039;?&#039; . $_SERVER[&#039;QUERY_STRING&#039;];
			}
		}
	}

	// Fix for PHP as CGI hosts that set SCRIPT_FILENAME to something ending in php.cgi for all requests.
	if ( isset( $_SERVER[&#039;SCRIPT_FILENAME&#039;] ) &amp;&amp; str_ends_with( $_SERVER[&#039;SCRIPT_FILENAME&#039;], &#039;php.cgi&#039; ) ) {
		$_SERVER[&#039;SCRIPT_FILENAME&#039;] = $_SERVER[&#039;PATH_TRANSLATED&#039;];
	}

	// Fix for Dreamhost and other PHP as CGI hosts.
	if ( isset( $_SERVER[&#039;SCRIPT_NAME&#039;] ) &amp;&amp; str_contains( $_SERVER[&#039;SCRIPT_NAME&#039;], &#039;php.cgi&#039; ) ) {
		unset( $_SERVER[&#039;PATH_INFO&#039;] );
	}

	// Fix empty PHP_SELF.
	$PHP_SELF = $_SERVER[&#039;PHP_SELF&#039;];
	if ( empty( $PHP_SELF ) ) {
		$_SERVER[&#039;PHP_SELF&#039;] = preg_replace( &#039;/(\?.*)?$/&#039;, &#039;&#039;, $_SERVER[&#039;REQUEST_URI&#039;] );
		$PHP_SELF            = $_SERVER[&#039;PHP_SELF&#039;];
	}

	wp_populate_basic_auth_from_authorization_header();
}

/**
 * Populates the Basic Auth server details from the Authorization header.
 *
 * Some servers running in CGI or FastCGI mode don&#039;t pass the Authorization
 * header on to WordPress.  If it&#039;s been rewritten to the `HTTP_AUTHORIZATION` header,
 * fill in the proper $_SERVER variables instead.
 *
 * @since 5.6.0
 */
function wp_populate_basic_auth_from_authorization_header() {
	// If we don&#039;t have anything to pull from, return early.
	if ( ! isset( $_SERVER[&#039;HTTP_AUTHORIZATION&#039;] ) &amp;&amp; ! isset( $_SERVER[&#039;REDIRECT_HTTP_AUTHORIZATION&#039;] ) ) {
		return;
	}

	// If either PHP_AUTH key is already set, do nothing.
	if ( isset( $_SERVER[&#039;PHP_AUTH_USER&#039;] ) || isset( $_SERVER[&#039;PHP_AUTH_PW&#039;] ) ) {
		return;
	}

	// From our prior conditional, one of these must be set.
	$header = isset( $_SERVER[&#039;HTTP_AUTHORIZATION&#039;] ) ? $_SERVER[&#039;HTTP_AUTHORIZATION&#039;] : $_SERVER[&#039;REDIRECT_HTTP_AUTHORIZATION&#039;];

	// Test to make sure the pattern matches expected.
	if ( ! preg_match( &#039;%^Basic [a-z\d/+]*={0,2}$%i&#039;, $header ) ) {
		return;
	}

	// Removing `Basic ` the token would start six characters in.
	$token    = substr( $header, 6 );
	$userpass = base64_decode( $token );

	// There must be at least one colon in the string.
	if ( ! str_contains( $userpass, &#039;:&#039; ) ) {
		return;
	}

	list( $user, $pass ) = explode( &#039;:&#039;, $userpass, 2 );

	// Now shove them in the proper keys where we&#039;re expecting later on.
	$_SERVER[&#039;PHP_AUTH_USER&#039;] = $user;
	$_SERVER[&#039;PHP_AUTH_PW&#039;]   = $pass;
}

/**
 * Checks for the required PHP version, and the mysqli extension or
 * a database drop-in.
 *
 * Dies if requirements are not met.
 *
 * @since 3.0.0
 * @access private
 *
 * @global string   $required_php_version    The required PHP version string.
 * @global string[] $required_php_extensions The names of required PHP extensions.
 * @global string   $wp_version              The WordPress version string.
 */
function wp_check_php_mysql_versions() {
	global $required_php_version, $required_php_extensions, $wp_version;

	$php_version = PHP_VERSION;

	if ( version_compare( $required_php_version, $php_version, &#039;&gt;&#039; ) ) {
		$protocol = wp_get_server_protocol();
		header( sprintf( &#039;%s 500 Internal Server Error&#039;, $protocol ), true, 500 );
		header( &#039;Content-Type: text/html; charset=utf-8&#039; );
		printf(
			&#039;Your server is running PHP version %1$s but WordPress %2$s requires at least %3$s.&#039;,
			$php_version,
			$wp_version,
			$required_php_version
		);
		exit( 1 );
	}

	$missing_extensions = array();

	if ( isset( $required_php_extensions ) &amp;&amp; is_array( $required_php_extensions ) ) {
		foreach ( $required_php_extensions as $extension ) {
			if ( extension_loaded( $extension ) ) {
				continue;
			}

			$missing_extensions[] = sprintf(
				&#039;WordPress %1$s requires the &lt;code&gt;%2$s&lt;/code&gt; PHP extension.&#039;,
				$wp_version,
				$extension
			);
		}
	}

	if ( count( $missing_extensions ) &gt; 0 ) {
		$protocol = wp_get_server_protocol();
		header( sprintf( &#039;%s 500 Internal Server Error&#039;, $protocol ), true, 500 );
		header( &#039;Content-Type: text/html; charset=utf-8&#039; );
		echo implode( &#039;&lt;br&gt;&#039;, $missing_extensions );
		exit( 1 );
	}

	// This runs before default constants are defined, so we can&#039;t assume WP_CONTENT_DIR is set yet.
	$wp_content_dir = defined( &#039;WP_CONTENT_DIR&#039; ) ? WP_CONTENT_DIR : ABSPATH . &#039;wp-content&#039;;

	if ( ! function_exists( &#039;mysqli_connect&#039; )
		&amp;&amp; ! file_exists( $wp_content_dir . &#039;/db.php&#039; )
	) {
		require_once ABSPATH . WPINC . &#039;/functions.php&#039;;
		wp_load_translations_early();

		$message = &#039;&lt;p&gt;&#039; . __( &#039;Your PHP installation appears to be missing the MySQL extension which is required by WordPress.&#039; ) . &quot;&lt;/p&gt;\n&quot;;

		$message .= &#039;&lt;p&gt;&#039; . sprintf(
			/* translators: %s: mysqli. */
			__( &#039;Please check that the %s PHP extension is installed and enabled.&#039; ),
			&#039;&lt;code&gt;mysqli&lt;/code&gt;&#039;
		) . &quot;&lt;/p&gt;\n&quot;;

		$message .= &#039;&lt;p&gt;&#039; . sprintf(
			/* translators: %s: Support forums URL. */
			__( &#039;If you are unsure what these terms mean you should probably contact your host. If you still need help you can always visit the &lt;a href=&quot;%s&quot;&gt;WordPress support forums&lt;/a&gt;.&#039; ),
			__( &#039;https://wordpress.org/support/forums/&#039; )
		) . &quot;&lt;/p&gt;\n&quot;;

		$args = array(
			&#039;exit&#039; =&gt; false,
			&#039;code&#039; =&gt; &#039;mysql_not_found&#039;,
		);
		wp_die(
			$message,
			__( &#039;Requirements Not Met&#039; ),
			$args
		);
		exit( 1 );
	}
}

/**
 * Retrieves the current environment type.
 *
 * The type can be set via the `WP_ENVIRONMENT_TYPE` global system variable,
 * or a constant of the same name.
 *
 * Possible values are &#039;local&#039;, &#039;development&#039;, &#039;staging&#039;, and &#039;production&#039;.
 * If not set, the type defaults to &#039;production&#039;.
 *
 * @since 5.5.0
 * @since 5.5.1 Added the &#039;local&#039; type.
 * @since 5.5.1 Removed the ability to alter the list of types.
 *
 * @return string The current environment type.
 */
function wp_get_environment_type() {
	static $current_env = &#039;&#039;;

	if ( ! defined( &#039;WP_RUN_CORE_TESTS&#039; ) &amp;&amp; $current_env ) {
		return $current_env;
	}

	$wp_environments = array(
		&#039;local&#039;,
		&#039;development&#039;,
		&#039;staging&#039;,
		&#039;production&#039;,
	);

	// Add a note about the deprecated WP_ENVIRONMENT_TYPES constant.
	if ( defined( &#039;WP_ENVIRONMENT_TYPES&#039; ) &amp;&amp; function_exists( &#039;_deprecated_argument&#039; ) ) {
		if ( function_exists( &#039;__&#039; ) ) {
			/* translators: %s: WP_ENVIRONMENT_TYPES */
			$message = sprintf( __( &#039;The %s constant is no longer supported.&#039; ), &#039;WP_ENVIRONMENT_TYPES&#039; );
		} else {
			$message = sprintf( &#039;The %s constant is no longer supported.&#039;, &#039;WP_ENVIRONMENT_TYPES&#039; );
		}

		_deprecated_argument(
			&#039;define()&#039;,
			&#039;5.5.1&#039;,
			$message
		);
	}

	// Check if the environment variable has been set, if `getenv` is available on the system.
	if ( function_exists( &#039;getenv&#039; ) ) {
		$has_env = getenv( &#039;WP_ENVIRONMENT_TYPE&#039; );
		if ( false !== $has_env ) {
			$current_env = $has_env;
		}
	}

	// Fetch the environment from a constant, this overrides the global system variable.
	if ( defined( &#039;WP_ENVIRONMENT_TYPE&#039; ) &amp;&amp; WP_ENVIRONMENT_TYPE ) {
		$current_env = WP_ENVIRONMENT_TYPE;
	}

	// Make sure the environment is an allowed one, and not accidentally set to an invalid value.
	if ( ! in_array( $current_env, $wp_environments, true ) ) {
		$current_env = &#039;production&#039;;
	}

	return $current_env;
}

/**
 * Retrieves the current development mode.
 *
 * The development mode affects how certain parts of the WordPress application behave,
 * which is relevant when developing for WordPress.
 *
 * Development mode can be set via the `WP_DEVELOPMENT_MODE` constant in `wp-config.php`.
 * Possible values are &#039;core&#039;, &#039;plugin&#039;, &#039;theme&#039;, &#039;all&#039;, or an empty string to disable
 * development mode. &#039;all&#039; is a special value to signify that all three development modes
 * (&#039;core&#039;, &#039;plugin&#039;, and &#039;theme&#039;) are enabled.
 *
 * Development mode is considered separately from `WP_DEBUG` and wp_get_environment_type().
 * It does not affect debugging output, but rather functional nuances in WordPress.
 *
 * This function retrieves the currently set development mode value. To check whether
 * a specific development mode is enabled, use wp_is_development_mode().
 *
 * @since 6.3.0
 *
 * @return string The current development mode.
 */
function wp_get_development_mode() {
	static $current_mode = null;

	if ( ! defined( &#039;WP_RUN_CORE_TESTS&#039; ) &amp;&amp; null !== $current_mode ) {
		return $current_mode;
	}

	$development_mode = WP_DEVELOPMENT_MODE;

	// Exclusively for core tests, rely on the `$_wp_tests_development_mode` global.
	if ( defined( &#039;WP_RUN_CORE_TESTS&#039; ) &amp;&amp; isset( $GLOBALS[&#039;_wp_tests_development_mode&#039;] ) ) {
		$development_mode = $GLOBALS[&#039;_wp_tests_development_mode&#039;];
	}

	$valid_modes = array(
		&#039;core&#039;,
		&#039;plugin&#039;,
		&#039;theme&#039;,
		&#039;all&#039;,
		&#039;&#039;,
	);

	if ( ! in_array( $development_mode, $valid_modes, true ) ) {
		$development_mode = &#039;&#039;;
	}

	$current_mode = $development_mode;

	return $current_mode;
}

/**
 * Checks whether the site is in the given development mode.
 *
 * @since 6.3.0
 *
 * @param string $mode Development mode to check for. Either &#039;core&#039;, &#039;plugin&#039;, &#039;theme&#039;, or &#039;all&#039;.
 * @return bool True if the given mode is covered by the current development mode, false otherwise.
 */
function wp_is_development_mode( $mode ) {
	$current_mode = wp_get_development_mode();
	if ( empty( $current_mode ) ) {
		return false;
	}

	// Return true if the current mode encompasses all modes.
	if ( &#039;all&#039; === $current_mode ) {
		return true;
	}

	// Return true if the current mode is the given mode.
	return $mode === $current_mode;
}

/**
 * Ensures all of WordPress is not loaded when handling a favicon.ico request.
 *
 * Instead, send the headers for a zero-length favicon and bail.
 *
 * @since 3.0.0
 * @deprecated 5.4.0 Deprecated in favor of do_favicon().
 */
function wp_favicon_request() {
	if ( &#039;/favicon.ico&#039; === $_SERVER[&#039;REQUEST_URI&#039;] ) {
		header( &#039;Content-Type: image/vnd.microsoft.icon&#039; );
		exit;
	}
}

/**
 * Dies with a maintenance message when conditions are met.
 *
 * The default message can be replaced by using a drop-in (maintenance.php in
 * the wp-content directory).
 *
 * @since 3.0.0
 * @access private
 */
function wp_maintenance() {
	// Return if maintenance mode is disabled.
	if ( ! wp_is_maintenance_mode() ) {
		return;
	}

	if ( file_exists( WP_CONTENT_DIR . &#039;/maintenance.php&#039; ) ) {
		require_once WP_CONTENT_DIR . &#039;/maintenance.php&#039;;
		die();
	}

	require_once ABSPATH . WPINC . &#039;/functions.php&#039;;
	wp_load_translations_early();

	header( &#039;Retry-After: 600&#039; );

	wp_die(
		__( &#039;Briefly unavailable for scheduled maintenance. Check back in a minute.&#039; ),
		__( &#039;Maintenance&#039; ),
		503
	);
}

/**
 * Checks if maintenance mode is enabled.
 *
 * Checks for a file in the WordPress root directory named &quot;.maintenance&quot;.
 * This file will contain the variable $upgrading, set to the time the file
 * was created. If the file was created less than 10 minutes ago, WordPress
 * is in maintenance mode.
 *
 * @since 5.5.0
 *
 * @global int $upgrading The Unix timestamp marking when upgrading WordPress began.
 *
 * @return bool True if maintenance mode is enabled, false otherwise.
 */
function wp_is_maintenance_mode() {
	global $upgrading;

	if ( ! file_exists( ABSPATH . &#039;.maintenance&#039; ) || wp_installing() ) {
		return false;
	}

	require ABSPATH . &#039;.maintenance&#039;;

	// If the $upgrading timestamp is older than 10 minutes, consider maintenance over.
	if ( ( time() - $upgrading ) &gt;= 10 * MINUTE_IN_SECONDS ) {
		return false;
	}

	// Don&#039;t enable maintenance mode while scraping for fatal errors.
	if ( is_int( $upgrading ) &amp;&amp; isset( $_REQUEST[&#039;wp_scrape_key&#039;], $_REQUEST[&#039;wp_scrape_nonce&#039;] ) ) {
		$key   = stripslashes( $_REQUEST[&#039;wp_scrape_key&#039;] );
		$nonce = stripslashes( $_REQUEST[&#039;wp_scrape_nonce&#039;] );

		if ( md5( $upgrading ) === $key &amp;&amp; (int) $nonce === $upgrading ) {
			return false;
		}
	}

	/**
	 * Filters whether to enable maintenance mode.
	 *
	 * This filter runs before it can be used by plugins. It is designed for
	 * non-web runtimes. If this filter returns true, maintenance mode will be
	 * active and the request will end. If false, the request will be allowed to
	 * continue processing even if maintenance mode should be active.
	 *
	 * @since 4.6.0
	 *
	 * @param bool $enable_checks Whether to enable maintenance mode. Default true.
	 * @param int  $upgrading     The timestamp set in the .maintenance file.
	 */
	if ( ! apply_filters( &#039;enable_maintenance_mode&#039;, true, $upgrading ) ) {
		return false;
	}

	return true;
}

/**
 * Gets the time elapsed so far during this PHP script.
 *
 * @since 5.8.0
 *
 * @return float Seconds since the PHP script started.
 */
function timer_float() {
	return microtime( true ) - $_SERVER[&#039;REQUEST_TIME_FLOAT&#039;];
}

/**
 * Starts the WordPress micro-timer.
 *
 * @since 0.71
 * @access private
 *
 * @global float $timestart Unix timestamp set at the beginning of the page load.
 * @see timer_stop()
 *
 * @return bool Always returns true.
 */
function timer_start() {
	global $timestart;

	$timestart = microtime( true );

	return true;
}

/**
 * Retrieves or displays the time from the page start to when function is called.
 *
 * @since 0.71
 *
 * @global float   $timestart Seconds from when timer_start() is called.
 * @global float   $timeend   Seconds from when function is called.
 *
 * @param int|bool $display   Whether to echo or return the results. Accepts 0|false for return,
 *                            1|true for echo. Default 0|false.
 * @param int      $precision The number of digits from the right of the decimal to display.
 *                            Default 3.
 * @return string The &quot;second.microsecond&quot; finished time calculation. The number is formatted
 *                for human consumption, both localized and rounded.
 */
function timer_stop( $display = 0, $precision = 3 ) {
	global $timestart, $timeend;

	$timeend   = microtime( true );
	$timetotal = $timeend - $timestart;

	if ( function_exists( &#039;number_format_i18n&#039; ) ) {
		$r = number_format_i18n( $timetotal, $precision );
	} else {
		$r = number_format( $timetotal, $precision );
	}

	if ( $display ) {
		echo $r;
	}

	return $r;
}

/**
 * Sets PHP error reporting based on WordPress debug settings.
 *
 * Uses three constants: `WP_DEBUG`, `WP_DEBUG_DISPLAY`, and `WP_DEBUG_LOG`.
 * All three can be defined in wp-config.php. By default, `WP_DEBUG` and
 * `WP_DEBUG_LOG` are set to false, and `WP_DEBUG_DISPLAY` is set to true.
 *
 * When `WP_DEBUG` is true, all PHP notices are reported. WordPress will also
 * display internal notices: when a deprecated WordPress function, function
 * argument, or file is used. Deprecated code may be removed from a later
 * version.
 *
 * It is strongly recommended that plugin and theme developers use `WP_DEBUG`
 * in their development environments.
 *
 * `WP_DEBUG_DISPLAY` and `WP_DEBUG_LOG` perform no function unless `WP_DEBUG`
 * is true.
 *
 * When `WP_DEBUG_DISPLAY` is true, WordPress will force errors to be displayed.
 * `WP_DEBUG_DISPLAY` defaults to true. Defining it as null prevents WordPress
 * from changing the global configuration setting. Defining `WP_DEBUG_DISPLAY`
 * as false will force errors to be hidden.
 *
 * When `WP_DEBUG_LOG` is true, errors will be logged to `wp-content/debug.log`.
 * When `WP_DEBUG_LOG` is a valid path, errors will be logged to the specified file.
 *
 * Errors are never displayed for XML-RPC, REST, `ms-files.php`, and Ajax requests.
 *
 * @since 3.0.0
 * @since 5.1.0 `WP_DEBUG_LOG` can be a file path.
 * @access private
 */
function wp_debug_mode() {
	/**
	 * Filters whether to allow the debug mode check to occur.
	 *
	 * This filter runs before it can be used by plugins. It is designed for
	 * non-web runtimes. Returning false causes the `WP_DEBUG` and related
	 * constants to not be checked and the default PHP values for errors
	 * will be used unless you take care to update them yourself.
	 *
	 * To use this filter you must define a `$wp_filter` global before
	 * WordPress loads, usually in `wp-config.php`.
	 *
	 * Example:
	 *
	 *     $GLOBALS[&#039;wp_filter&#039;] = array(
	 *         &#039;enable_wp_debug_mode_checks&#039; =&gt; array(
	 *             10 =&gt; array(
	 *                 array(
	 *                     &#039;accepted_args&#039; =&gt; 0,
	 *                     &#039;function&#039;      =&gt; function() {
	 *                         return false;
	 *                     },
	 *                 ),
	 *             ),
	 *         ),
	 *     );
	 *
	 * @since 4.6.0
	 *
	 * @param bool $enable_debug_mode Whether to enable debug mode checks to occur. Default true.
	 */
	if ( ! apply_filters( &#039;enable_wp_debug_mode_checks&#039;, true ) ) {
		return;
	}

	if ( WP_DEBUG ) {
		error_reporting( E_ALL );

		if ( WP_DEBUG_DISPLAY ) {
			ini_set( &#039;display_errors&#039;, 1 );
		} elseif ( null !== WP_DEBUG_DISPLAY ) {
			ini_set( &#039;display_errors&#039;, 0 );
		}

		if ( in_array( strtolower( (string) WP_DEBUG_LOG ), array( &#039;true&#039;, &#039;1&#039; ), true ) ) {
			$log_path = WP_CONTENT_DIR . &#039;/debug.log&#039;;
		} elseif ( is_string( WP_DEBUG_LOG ) ) {
			$log_path = WP_DEBUG_LOG;
		} else {
			$log_path = false;
		}

		if ( $log_path ) {
			ini_set( &#039;log_errors&#039;, 1 );
			ini_set( &#039;error_log&#039;, $log_path );
		}
	} else {
		error_reporting( E_CORE_ERROR | E_CORE_WARNING | E_COMPILE_ERROR | E_ERROR | E_WARNING | E_PARSE | E_USER_ERROR | E_USER_WARNING | E_RECOVERABLE_ERROR );
	}

	/*
	 * The &#039;REST_REQUEST&#039; check here is optimistic as the constant is most
	 * likely not set at this point even if it is in fact a REST request.
	 */
	if ( defined( &#039;XMLRPC_REQUEST&#039; ) || defined( &#039;REST_REQUEST&#039; ) || defined( &#039;MS_FILES_REQUEST&#039; )
		|| ( defined( &#039;WP_INSTALLING&#039; ) &amp;&amp; WP_INSTALLING )
		|| wp_doing_ajax() || wp_is_json_request()
	) {
		ini_set( &#039;display_errors&#039;, 0 );
	}
}

/**
 * Sets the location of the language directory.
 *
 * To set directory manually, define the `WP_LANG_DIR` constant
 * in wp-config.php.
 *
 * If the language directory exists within `WP_CONTENT_DIR`, it
 * is used. Otherwise the language directory is assumed to live
 * in `WPINC`.
 *
 * @since 3.0.0
 * @access private
 */
function wp_set_lang_dir() {
	if ( ! defined( &#039;WP_LANG_DIR&#039; ) ) {
		if ( file_exists( WP_CONTENT_DIR . &#039;/languages&#039; ) &amp;&amp; @is_dir( WP_CONTENT_DIR . &#039;/languages&#039; )
			|| ! @is_dir( ABSPATH . WPINC . &#039;/languages&#039; )
		) {
			/**
			 * Server path of the language directory.
			 *
			 * No leading slash, no trailing slash, full path, not relative to ABSPATH
			 *
			 * @since 2.1.0
			 */
			define( &#039;WP_LANG_DIR&#039;, WP_CONTENT_DIR . &#039;/languages&#039; );

			if ( ! defined( &#039;LANGDIR&#039; ) ) {
				// Old static relative path maintained for limited backward compatibility - won&#039;t work in some cases.
				define( &#039;LANGDIR&#039;, &#039;wp-content/languages&#039; );
			}
		} else {
			/**
			 * Server path of the language directory.
			 *
			 * No leading slash, no trailing slash, full path, not relative to `ABSPATH`.
			 *
			 * @since 2.1.0
			 */
			define( &#039;WP_LANG_DIR&#039;, ABSPATH . WPINC . &#039;/languages&#039; );

			if ( ! defined( &#039;LANGDIR&#039; ) ) {
				// Old relative path maintained for backward compatibility.
				define( &#039;LANGDIR&#039;, WPINC . &#039;/languages&#039; );
			}
		}
	}
}

/**
 * Loads the database class file and instantiates the `$wpdb` global.
 *
 * @since 2.5.0
 *
 * @global wpdb $wpdb WordPress database abstraction object.
 */
function require_wp_db() {
	global $wpdb;

	require_once ABSPATH . WPINC . &#039;/class-wpdb.php&#039;;

	if ( file_exists( WP_CONTENT_DIR . &#039;/db.php&#039; ) ) {
		require_once WP_CONTENT_DIR . &#039;/db.php&#039;;
	}

	if ( isset( $wpdb ) ) {
		return;
	}

	$dbuser     = defined( &#039;DB_USER&#039; ) ? DB_USER : &#039;&#039;;
	$dbpassword = defined( &#039;DB_PASSWORD&#039; ) ? DB_PASSWORD : &#039;&#039;;
	$dbname     = defined( &#039;DB_NAME&#039; ) ? DB_NAME : &#039;&#039;;
	$dbhost     = defined( &#039;DB_HOST&#039; ) ? DB_HOST : &#039;&#039;;

	$wpdb = new wpdb( $dbuser, $dbpassword, $dbname, $dbhost );
}

/**
 * Sets the database table prefix and the format specifiers for database
 * table columns.
 *
 * Columns not listed here default to `%s`.
 *
 * @since 3.0.0
 * @access private
 *
 * @global wpdb   $wpdb         WordPress database abstraction object.
 * @global string $table_prefix The database table prefix.
 */
function wp_set_wpdb_vars() {
	global $wpdb, $table_prefix;

	if ( ! empty( $wpdb-&gt;error ) ) {
		dead_db();
	}

	$wpdb-&gt;field_types = array(
		&#039;post_author&#039;      =&gt; &#039;%d&#039;,
		&#039;post_parent&#039;      =&gt; &#039;%d&#039;,
		&#039;menu_order&#039;       =&gt; &#039;%d&#039;,
		&#039;term_id&#039;          =&gt; &#039;%d&#039;,
		&#039;term_group&#039;       =&gt; &#039;%d&#039;,
		&#039;term_taxonomy_id&#039; =&gt; &#039;%d&#039;,
		&#039;parent&#039;           =&gt; &#039;%d&#039;,
		&#039;count&#039;            =&gt; &#039;%d&#039;,
		&#039;object_id&#039;        =&gt; &#039;%d&#039;,
		&#039;term_order&#039;       =&gt; &#039;%d&#039;,
		&#039;ID&#039;               =&gt; &#039;%d&#039;,
		&#039;comment_ID&#039;       =&gt; &#039;%d&#039;,
		&#039;comment_post_ID&#039;  =&gt; &#039;%d&#039;,
		&#039;comment_parent&#039;   =&gt; &#039;%d&#039;,
		&#039;user_id&#039;          =&gt; &#039;%d&#039;,
		&#039;link_id&#039;          =&gt; &#039;%d&#039;,
		&#039;link_owner&#039;       =&gt; &#039;%d&#039;,
		&#039;link_rating&#039;      =&gt; &#039;%d&#039;,
		&#039;option_id&#039;        =&gt; &#039;%d&#039;,
		&#039;blog_id&#039;          =&gt; &#039;%d&#039;,
		&#039;meta_id&#039;          =&gt; &#039;%d&#039;,
		&#039;post_id&#039;          =&gt; &#039;%d&#039;,
		&#039;user_status&#039;      =&gt; &#039;%d&#039;,
		&#039;umeta_id&#039;         =&gt; &#039;%d&#039;,
		&#039;comment_karma&#039;    =&gt; &#039;%d&#039;,
		&#039;comment_count&#039;    =&gt; &#039;%d&#039;,
		// Multisite:
		&#039;active&#039;           =&gt; &#039;%d&#039;,
		&#039;cat_id&#039;           =&gt; &#039;%d&#039;,
		&#039;deleted&#039;          =&gt; &#039;%d&#039;,
		&#039;lang_id&#039;          =&gt; &#039;%d&#039;,
		&#039;mature&#039;           =&gt; &#039;%d&#039;,
		&#039;public&#039;           =&gt; &#039;%d&#039;,
		&#039;site_id&#039;          =&gt; &#039;%d&#039;,
		&#039;spam&#039;             =&gt; &#039;%d&#039;,
	);

	$prefix = $wpdb-&gt;set_prefix( $table_prefix );

	if ( is_wp_error( $prefix ) ) {
		wp_load_translations_early();
		wp_die(
			sprintf(
				/* translators: 1: $table_prefix, 2: wp-config.php */
				__( &#039;&lt;strong&gt;Error:&lt;/strong&gt; %1$s in %2$s can only contain numbers, letters, and underscores.&#039; ),
				&#039;&lt;code&gt;$table_prefix&lt;/code&gt;&#039;,
				&#039;&lt;code&gt;wp-config.php&lt;/code&gt;&#039;
			)
		);
	}
}

/**
 * Toggles `$_wp_using_ext_object_cache` on and off without directly
 * touching global.
 *
 * @since 3.7.0
 *
 * @global bool $_wp_using_ext_object_cache
 *
 * @param bool $using Whether external object cache is being used.
 * @return bool The current &#039;using&#039; setting.
 */
function wp_using_ext_object_cache( $using = null ) {
	global $_wp_using_ext_object_cache;

	$current_using = $_wp_using_ext_object_cache;

	if ( null !== $using ) {
		$_wp_using_ext_object_cache = $using;
	}

	return $current_using;
}

/**
 * Starts the WordPress object cache.
 *
 * If an object-cache.php file exists in the wp-content directory,
 * it uses that drop-in as an external object cache.
 *
 * @since 3.0.0
 * @access private
 *
 * @global array $wp_filter Stores all of the filters.
 */
function wp_start_object_cache() {
	global $wp_filter;
	static $first_init = true;

	// Only perform the following checks once.

	/**
	 * Filters whether to enable loading of the object-cache.php drop-in.
	 *
	 * This filter runs before it can be used by plugins. It is designed for non-web
	 * runtimes. If false is returned, object-cache.php will never be loaded.
	 *
	 * @since 5.8.0
	 *
	 * @param bool $enable_object_cache Whether to enable loading object-cache.php (if present).
	 *                                  Default true.
	 */
	if ( $first_init &amp;&amp; apply_filters( &#039;enable_loading_object_cache_dropin&#039;, true ) ) {
		if ( ! function_exists( &#039;wp_cache_init&#039; ) ) {
			/*
			 * This is the normal situation. First-run of this function. No
			 * caching backend has been loaded.
			 *
			 * We try to load a custom caching backend, and then, if it
			 * results in a wp_cache_init() function existing, we note
			 * that an external object cache is being used.
			 */
			if ( file_exists( WP_CONTENT_DIR . &#039;/object-cache.php&#039; ) ) {
				require_once WP_CONTENT_DIR . &#039;/object-cache.php&#039;;

				if ( function_exists( &#039;wp_cache_init&#039; ) ) {
					wp_using_ext_object_cache( true );
				}

				// Re-initialize any hooks added manually by object-cache.php.
				if ( $wp_filter ) {
					$wp_filter = WP_Hook::build_preinitialized_hooks( $wp_filter );
				}
			}
		} elseif ( ! wp_using_ext_object_cache() &amp;&amp; file_exists( WP_CONTENT_DIR . &#039;/object-cache.php&#039; ) ) {
			/*
			 * Sometimes advanced-cache.php can load object-cache.php before
			 * this function is run. This breaks the function_exists() check
			 * above and can result in wp_using_ext_object_cache() returning
			 * false when actually an external cache is in use.
			 */
			wp_using_ext_object_cache( true );
		}
	}

	if ( ! wp_using_ext_object_cache() ) {
		require_once ABSPATH . WPINC . &#039;/cache.php&#039;;
	}

	require_once ABSPATH . WPINC . &#039;/cache-compat.php&#039;;

	/*
	 * If cache supports reset, reset instead of init if already
	 * initialized. Reset signals to the cache that global IDs
	 * have changed and it may need to update keys and cleanup caches.
	 */
	if ( ! $first_init &amp;&amp; function_exists( &#039;wp_cache_switch_to_blog&#039; ) ) {
		wp_cache_switch_to_blog( get_current_blog_id() );
	} elseif ( function_exists( &#039;wp_cache_init&#039; ) ) {
		wp_cache_init();
	}

	if ( function_exists( &#039;wp_cache_add_global_groups&#039; ) ) {
		wp_cache_add_global_groups(
			array(
				&#039;blog-details&#039;,
				&#039;blog-id-cache&#039;,
				&#039;blog-lookup&#039;,
				&#039;blog_meta&#039;,
				&#039;global-posts&#039;,
				&#039;image_editor&#039;,
				&#039;networks&#039;,
				&#039;network-queries&#039;,
				&#039;sites&#039;,
				&#039;site-details&#039;,
				&#039;site-options&#039;,
				&#039;site-queries&#039;,
				&#039;site-transient&#039;,
				&#039;theme_files&#039;,
				&#039;translation_files&#039;,
				&#039;rss&#039;,
				&#039;users&#039;,
				&#039;user-queries&#039;,
				&#039;user_meta&#039;,
				&#039;useremail&#039;,
				&#039;userlogins&#039;,
				&#039;userslugs&#039;,
			)
		);

		wp_cache_add_non_persistent_groups( array( &#039;counts&#039;, &#039;plugins&#039;, &#039;theme_json&#039; ) );
	}

	$first_init = false;
}

/**
 * Redirects to the installer if WordPress is not installed.
 *
 * Dies with an error message when Multisite is enabled.
 *
 * @since 3.0.0
 * @access private
 */
function wp_not_installed() {
	if ( is_blog_installed() || wp_installing() ) {
		return;
	}

	nocache_headers();

	if ( is_multisite() ) {
		wp_die( __( &#039;The site you have requested is not installed properly. Please contact the system administrator.&#039; ) );
	}

	require ABSPATH . WPINC . &#039;/kses.php&#039;;
	require ABSPATH . WPINC . &#039;/pluggable.php&#039;;

	$link = wp_guess_url() . &#039;/wp-admin/install.php&#039;;

	wp_redirect( $link );
	die();
}

/**
 * Retrieves an array of must-use plugin files.
 *
 * The default directory is wp-content/mu-plugins. To change the default
 * directory manually, define `WPMU_PLUGIN_DIR` and `WPMU_PLUGIN_URL`
 * in wp-config.php.
 *
 * @since 3.0.0
 * @access private
 *
 * @return string[] Array of absolute paths of files to include.
 */
function wp_get_mu_plugins() {
	$mu_plugins = array();

	if ( ! is_dir( WPMU_PLUGIN_DIR ) ) {
		return $mu_plugins;
	}

	$dh = opendir( WPMU_PLUGIN_DIR );
	if ( ! $dh ) {
		return $mu_plugins;
	}

	while ( ( $plugin = readdir( $dh ) ) !== false ) {
		if ( str_ends_with( $plugin, &#039;.php&#039; ) ) {
			$mu_plugins[] = WPMU_PLUGIN_DIR . &#039;/&#039; . $plugin;
		}
	}

	closedir( $dh );

	sort( $mu_plugins );

	return $mu_plugins;
}

/**
 * Retrieves an array of active and valid plugin files.
 *
 * While upgrading or installing WordPress, no plugins are returned.
 *
 * The default directory is `wp-content/plugins`. To change the default
 * directory manually, define `WP_PLUGIN_DIR` and `WP_PLUGIN_URL`
 * in `wp-config.php`.
 *
 * @since 3.0.0
 * @access private
 *
 * @return string[] Array of paths to plugin files relative to the plugins directory.
 */
function wp_get_active_and_valid_plugins() {
	$plugins        = array();
	$active_plugins = (array) get_option( &#039;active_plugins&#039;, array() );

	// Check for hacks file if the option is enabled.
	if ( get_option( &#039;hack_file&#039; ) &amp;&amp; file_exists( ABSPATH . &#039;my-hacks.php&#039; ) ) {
		_deprecated_file( &#039;my-hacks.php&#039;, &#039;1.5.0&#039; );
		array_unshift( $plugins, ABSPATH . &#039;my-hacks.php&#039; );
	}

	if ( empty( $active_plugins ) || wp_installing() ) {
		return $plugins;
	}

	$network_plugins = is_multisite() ? wp_get_active_network_plugins() : false;

	foreach ( $active_plugins as $plugin ) {
		if ( ! validate_file( $plugin )                     // $plugin must validate as file.
			&amp;&amp; str_ends_with( $plugin, &#039;.php&#039; )             // $plugin must end with &#039;.php&#039;.
			&amp;&amp; file_exists( WP_PLUGIN_DIR . &#039;/&#039; . $plugin ) // $plugin must exist.
			// Not already included as a network plugin.
			&amp;&amp; ( ! $network_plugins || ! in_array( WP_PLUGIN_DIR . &#039;/&#039; . $plugin, $network_plugins, true ) )
		) {
			$plugins[] = WP_PLUGIN_DIR . &#039;/&#039; . $plugin;
		}
	}

	/*
	 * Remove plugins from the list of active plugins when we&#039;re on an endpoint
	 * that should be protected against WSODs and the plugin is paused.
	 */
	if ( wp_is_recovery_mode() ) {
		$plugins = wp_skip_paused_plugins( $plugins );
	}

	return $plugins;
}

/**
 * Filters a given list of plugins, removing any paused plugins from it.
 *
 * @since 5.2.0
 *
 * @global WP_Paused_Extensions_Storage $_paused_plugins
 *
 * @param string[] $plugins Array of absolute plugin main file paths.
 * @return string[] Filtered array of plugins, without any paused plugins.
 */
function wp_skip_paused_plugins( array $plugins ) {
	$paused_plugins = wp_paused_plugins()-&gt;get_all();

	if ( empty( $paused_plugins ) ) {
		return $plugins;
	}

	foreach ( $plugins as $index =&gt; $plugin ) {
		list( $plugin ) = explode( &#039;/&#039;, plugin_basename( $plugin ) );

		if ( array_key_exists( $plugin, $paused_plugins ) ) {
			unset( $plugins[ $index ] );

			// Store list of paused plugins for displaying an admin notice.
			$GLOBALS[&#039;_paused_plugins&#039;][ $plugin ] = $paused_plugins[ $plugin ];
		}
	}

	return $plugins;
}

/**
 * Retrieves an array of active and valid themes.
 *
 * While upgrading or installing WordPress, no themes are returned.
 *
 * @since 5.1.0
 * @access private
 *
 * @global string $pagenow            The filename of the current screen.
 * @global string $wp_stylesheet_path Path to current theme&#039;s stylesheet directory.
 * @global string $wp_template_path   Path to current theme&#039;s template directory.
 *
 * @return string[] Array of absolute paths to theme directories.
 */
function wp_get_active_and_valid_themes() {
	global $pagenow, $wp_stylesheet_path, $wp_template_path;

	$themes = array();

	if ( wp_installing() &amp;&amp; &#039;wp-activate.php&#039; !== $pagenow ) {
		return $themes;
	}

	if ( is_child_theme() ) {
		$themes[] = $wp_stylesheet_path;
	}

	$themes[] = $wp_template_path;

	/*
	 * Remove themes from the list of active themes when we&#039;re on an endpoint
	 * that should be protected against WSODs and the theme is paused.
	 */
	if ( wp_is_recovery_mode() ) {
		$themes = wp_skip_paused_themes( $themes );

		// If no active and valid themes exist, skip loading themes.
		if ( empty( $themes ) ) {
			add_filter( &#039;wp_using_themes&#039;, &#039;__return_false&#039; );
		}
	}

	return $themes;
}

/**
 * Filters a given list of themes, removing any paused themes from it.
 *
 * @since 5.2.0
 *
 * @global WP_Paused_Extensions_Storage $_paused_themes
 *
 * @param string[] $themes Array of absolute theme directory paths.
 * @return string[] Filtered array of absolute paths to themes, without any paused themes.
 */
function wp_skip_paused_themes( array $themes ) {
	$paused_themes = wp_paused_themes()-&gt;get_all();

	if ( empty( $paused_themes ) ) {
		return $themes;
	}

	foreach ( $themes as $index =&gt; $theme ) {
		$theme = basename( $theme );

		if ( array_key_exists( $theme, $paused_themes ) ) {
			unset( $themes[ $index ] );

			// Store list of paused themes for displaying an admin notice.
			$GLOBALS[&#039;_paused_themes&#039;][ $theme ] = $paused_themes[ $theme ];
		}
	}

	return $themes;
}

/**
 * Determines whether WordPress is in Recovery Mode.
 *
 * In this mode, plugins or themes that cause WSODs will be paused.
 *
 * @since 5.2.0
 *
 * @return bool
 */
function wp_is_recovery_mode() {
	return wp_recovery_mode()-&gt;is_active();
}

/**
 * Determines whether we are currently on an endpoint that should be protected against WSODs.
 *
 * @since 5.2.0
 *
 * @global string $pagenow The filename of the current screen.
 *
 * @return bool True if the current endpoint should be protected.
 */
function is_protected_endpoint() {
	// Protect login pages.
	if ( isset( $GLOBALS[&#039;pagenow&#039;] ) &amp;&amp; &#039;wp-login.php&#039; === $GLOBALS[&#039;pagenow&#039;] ) {
		return true;
	}

	// Protect the admin backend.
	if ( is_admin() &amp;&amp; ! wp_doing_ajax() ) {
		return true;
	}

	// Protect Ajax actions that could help resolve a fatal error should be available.
	if ( is_protected_ajax_action() ) {
		return true;
	}

	/**
	 * Filters whether the current request is against a protected endpoint.
	 *
	 * This filter is only fired when an endpoint is requested which is not already protected by
	 * WordPress core. As such, it exclusively allows providing further protected endpoints in
	 * addition to the admin backend, login pages and protected Ajax actions.
	 *
	 * @since 5.2.0
	 *
	 * @param bool $is_protected_endpoint Whether the currently requested endpoint is protected.
	 *                                    Default false.
	 */
	return (bool) apply_filters( &#039;is_protected_endpoint&#039;, false );
}

/**
 * Determines whether we are currently handling an Ajax action that should be protected against WSODs.
 *
 * @since 5.2.0
 *
 * @return bool True if the current Ajax action should be protected.
 */
function is_protected_ajax_action() {
	if ( ! wp_doing_ajax() ) {
		return false;
	}

	if ( ! isset( $_REQUEST[&#039;action&#039;] ) ) {
		return false;
	}

	$actions_to_protect = array(
		&#039;edit-theme-plugin-file&#039;, // Saving changes in the core code editor.
		&#039;heartbeat&#039;,              // Keep the heart beating.
		&#039;install-plugin&#039;,         // Installing a new plugin.
		&#039;install-theme&#039;,          // Installing a new theme.
		&#039;search-plugins&#039;,         // Searching in the list of plugins.
		&#039;search-install-plugins&#039;, // Searching for a plugin in the plugin install screen.
		&#039;update-plugin&#039;,          // Update an existing plugin.
		&#039;update-theme&#039;,           // Update an existing theme.
		&#039;activate-plugin&#039;,        // Activating an existing plugin.
	);

	/**
	 * Filters the array of protected Ajax actions.
	 *
	 * This filter is only fired when doing Ajax and the Ajax request has an &#039;action&#039; property.
	 *
	 * @since 5.2.0
	 *
	 * @param string[] $actions_to_protect Array of strings with Ajax actions to protect.
	 */
	$actions_to_protect = (array) apply_filters( &#039;wp_protected_ajax_actions&#039;, $actions_to_protect );

	if ( ! in_array( $_REQUEST[&#039;action&#039;], $actions_to_protect, true ) ) {
		return false;
	}

	return true;
}

/**
 * Sets internal encoding.
 *
 * In most cases the default internal encoding is latin1, which is
 * of no use, since we want to use the `mb_` functions for `utf-8` strings.
 *
 * @since 3.0.0
 * @access private
 */
function wp_set_internal_encoding() {
	if ( function_exists( &#039;mb_internal_encoding&#039; ) ) {
		$charset = get_option( &#039;blog_charset&#039; );
		// phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
		if ( ! $charset || ! @mb_internal_encoding( $charset ) ) {
			mb_internal_encoding( &#039;UTF-8&#039; );
		}
	}
}

/**
 * Adds magic quotes to `$_GET`, `$_POST`, `$_COOKIE`, and `$_SERVER`.
 *
 * Also forces `$_REQUEST` to be `$_GET + $_POST`. If `$_SERVER`,
 * `$_COOKIE`, or `$_ENV` are needed, use those superglobals directly.
 *
 * @since 3.0.0
 * @access private
 */
function wp_magic_quotes() {
	// Escape with wpdb.
	$_GET    = add_magic_quotes( $_GET );
	$_POST   = add_magic_quotes( $_POST );
	$_COOKIE = add_magic_quotes( $_COOKIE );
	$_SERVER = add_magic_quotes( $_SERVER );

	// Force REQUEST to be GET + POST.
	$_REQUEST = array_merge( $_GET, $_POST );
}

/**
 * Runs just before PHP shuts down execution.
 *
 * @since 1.2.0
 * @access private
 */
function shutdown_action_hook() {
	/**
	 * Fires just before PHP shuts down execution.
	 *
	 * @since 1.2.0
	 */
	do_action( &#039;shutdown&#039; );

	wp_cache_close();
}

/**
 * Clones an object.
 *
 * @since 2.7.0
 * @deprecated 3.2.0
 *
 * @param object $input_object The object to clone.
 * @return object The cloned object.
 */
function wp_clone( $input_object ) {
	// Use parens for clone to accommodate PHP 4. See #17880.
	return clone( $input_object );
}

/**
 * Determines whether the current request is for the login screen.
 *
 * @since 6.1.0
 *
 * @see wp_login_url()
 *
 * @return bool True if inside WordPress login screen, false otherwise.
 */
function is_login() {
	return false !== stripos( wp_login_url(), $_SERVER[&#039;SCRIPT_NAME&#039;] );
}

/**
 * Determines whether the current request is for an administrative interface page.
 *
 * Does not check if the user is an administrator; use current_user_can()
 * for checking roles and capabilities.
 *
 * For more information on this and similar theme functions, check out
 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/
 * Conditional Tags} article in the Theme Developer Handbook.
 *
 * @since 1.5.1
 *
 * @global WP_Screen $current_screen WordPress current screen object.
 *
 * @return bool True if inside WordPress administration interface, false otherwise.
 */
function is_admin() {
	if ( isset( $GLOBALS[&#039;current_screen&#039;] ) ) {
		return $GLOBALS[&#039;current_screen&#039;]-&gt;in_admin();
	} elseif ( defined( &#039;WP_ADMIN&#039; ) ) {
		return WP_ADMIN;
	}

	return false;
}

/**
 * Determines whether the current request is for a site&#039;s administrative interface.
 *
 * e.g. `/wp-admin/`
 *
 * Does not check if the user is an administrator; use current_user_can()
 * for checking roles and capabilities.
 *
 * @since 3.1.0
 *
 * @global WP_Screen $current_screen WordPress current screen object.
 *
 * @return bool True if inside WordPress site administration pages.
 */
function is_blog_admin() {
	if ( isset( $GLOBALS[&#039;current_screen&#039;] ) ) {
		return $GLOBALS[&#039;current_screen&#039;]-&gt;in_admin( &#039;site&#039; );
	} elseif ( defined( &#039;WP_BLOG_ADMIN&#039; ) ) {
		return WP_BLOG_ADMIN;
	}

	return false;
}

/**
 * Determines whether the current request is for the network administrative interface.
 *
 * e.g. `/wp-admin/network/`
 *
 * Does not check if the user is an administrator; use current_user_can()
 * for checking roles and capabilities.
 *
 * Does not check if the site is a Multisite network; use is_multisite()
 * for checking if Multisite is enabled.
 *
 * @since 3.1.0
 *
 * @global WP_Screen $current_screen WordPress current screen object.
 *
 * @return bool True if inside WordPress network administration pages.
 */
function is_network_admin() {
	if ( isset( $GLOBALS[&#039;current_screen&#039;] ) ) {
		return $GLOBALS[&#039;current_screen&#039;]-&gt;in_admin( &#039;network&#039; );
	} elseif ( defined( &#039;WP_NETWORK_ADMIN&#039; ) ) {
		return WP_NETWORK_ADMIN;
	}

	return false;
}

/**
 * Determines whether the current request is for a user admin screen.
 *
 * e.g. `/wp-admin/user/`
 *
 * Does not check if the user is an administrator; use current_user_can()
 * for checking roles and capabilities.
 *
 * @since 3.1.0
 *
 * @global WP_Screen $current_screen WordPress current screen object.
 *
 * @return bool True if inside WordPress user administration pages.
 */
function is_user_admin() {
	if ( isset( $GLOBALS[&#039;current_screen&#039;] ) ) {
		return $GLOBALS[&#039;current_screen&#039;]-&gt;in_admin( &#039;user&#039; );
	} elseif ( defined( &#039;WP_USER_ADMIN&#039; ) ) {
		return WP_USER_ADMIN;
	}

	return false;
}

/**
 * Determines whether Multisite is enabled.
 *
 * @since 3.0.0
 *
 * @return bool True if Multisite is enabled, false otherwise.
 */
function is_multisite() {
	if ( defined( &#039;MULTISITE&#039; ) ) {
		return MULTISITE;
	}

	if ( defined( &#039;SUBDOMAIN_INSTALL&#039; ) || defined( &#039;VHOST&#039; ) || defined( &#039;SUNRISE&#039; ) ) {
		return true;
	}

	return false;
}

/**
 * Converts a value to non-negative integer.
 *
 * @since 2.5.0
 *
 * @param mixed $maybeint Data you wish to have converted to a non-negative integer.
 * @return int A non-negative integer.
 */
function absint( $maybeint ) {
	return abs( (int) $maybeint );
}

/**
 * Retrieves the current site ID.
 *
 * @since 3.1.0
 *
 * @global int $blog_id
 *
 * @return int Site ID.
 */
function get_current_blog_id() {
	global $blog_id;

	return absint( $blog_id );
}

/**
 * Retrieves the current network ID.
 *
 * @since 4.6.0
 *
 * @return int The ID of the current network.
 */
function get_current_network_id() {
	if ( ! is_multisite() ) {
		return 1;
	}

	$current_network = get_network();

	if ( ! isset( $current_network-&gt;id ) ) {
		return get_main_network_id();
	}

	return absint( $current_network-&gt;id );
}

/**
 * Attempts an early load of translations.
 *
 * Used for errors encountered during the initial loading process, before
 * the locale has been properly detected and loaded.
 *
 * Designed for unusual load sequences (like setup-config.php) or for when
 * the script will then terminate with an error, otherwise there is a risk
 * that a file can be double-included.
 *
 * @since 3.4.0
 * @access private
 *
 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry.
 * @global WP_Locale              $wp_locale              WordPress date and time locale object.
 */
function wp_load_translations_early() {
	global $wp_textdomain_registry, $wp_locale;
	static $loaded = false;

	if ( $loaded ) {
		return;
	}

	$loaded = true;

	if ( function_exists( &#039;did_action&#039; ) &amp;&amp; did_action( &#039;init&#039; ) ) {
		return;
	}

	// We need $wp_local_package.
	require ABSPATH . WPINC . &#039;/version.php&#039;;

	// Translation and localization.
	require_once ABSPATH . WPINC . &#039;/pomo/mo.php&#039;;
	require_once ABSPATH . WPINC . &#039;/l10n/class-wp-translation-controller.php&#039;;
	require_once ABSPATH . WPINC . &#039;/l10n/class-wp-translations.php&#039;;
	require_once ABSPATH . WPINC . &#039;/l10n/class-wp-translation-file.php&#039;;
	require_once ABSPATH . WPINC . &#039;/l10n/class-wp-translation-file-mo.php&#039;;
	require_once ABSPATH . WPINC . &#039;/l10n/class-wp-translation-file-php.php&#039;;
	require_once ABSPATH . WPINC . &#039;/l10n.php&#039;;
	require_once ABSPATH . WPINC . &#039;/class-wp-textdomain-registry.php&#039;;
	require_once ABSPATH . WPINC . &#039;/class-wp-locale.php&#039;;
	require_once ABSPATH . WPINC . &#039;/class-wp-locale-switcher.php&#039;;

	// General libraries.
	require_once ABSPATH . WPINC . &#039;/plugin.php&#039;;

	$locales   = array();
	$locations = array();

	if ( ! $wp_textdomain_registry instanceof WP_Textdomain_Registry ) {
		$wp_textdomain_registry = new WP_Textdomain_Registry();
	}

	while ( true ) {
		if ( defined( &#039;WPLANG&#039; ) ) {
			if ( &#039;&#039; === WPLANG ) {
				break;
			}
			$locales[] = WPLANG;
		}

		if ( isset( $wp_local_package ) ) {
			$locales[] = $wp_local_package;
		}

		if ( ! $locales ) {
			break;
		}

		if ( defined( &#039;WP_LANG_DIR&#039; ) &amp;&amp; @is_dir( WP_LANG_DIR ) ) {
			$locations[] = WP_LANG_DIR;
		}

		if ( defined( &#039;WP_CONTENT_DIR&#039; ) &amp;&amp; @is_dir( WP_CONTENT_DIR . &#039;/languages&#039; ) ) {
			$locations[] = WP_CONTENT_DIR . &#039;/languages&#039;;
		}

		if ( @is_dir( ABSPATH . &#039;wp-content/languages&#039; ) ) {
			$locations[] = ABSPATH . &#039;wp-content/languages&#039;;
		}

		if ( @is_dir( ABSPATH . WPINC . &#039;/languages&#039; ) ) {
			$locations[] = ABSPATH . WPINC . &#039;/languages&#039;;
		}

		if ( ! $locations ) {
			break;
		}

		$locations = array_unique( $locations );

		foreach ( $locales as $locale ) {
			foreach ( $locations as $location ) {
				if ( file_exists( $location . &#039;/&#039; . $locale . &#039;.mo&#039; ) ) {
					load_textdomain( &#039;default&#039;, $location . &#039;/&#039; . $locale . &#039;.mo&#039;, $locale );

					if ( defined( &#039;WP_SETUP_CONFIG&#039; ) &amp;&amp; file_exists( $location . &#039;/admin-&#039; . $locale . &#039;.mo&#039; ) ) {
						load_textdomain( &#039;default&#039;, $location . &#039;/admin-&#039; . $locale . &#039;.mo&#039;, $locale );
					}

					break 2;
				}
			}
		}

		break;
	}

	$wp_locale = new WP_Locale();
}

/**
 * Checks or sets whether WordPress is in &quot;installation&quot; mode.
 *
 * If the `WP_INSTALLING` constant is defined during the bootstrap, `wp_installing()` will default to `true`.
 *
 * @since 4.4.0
 *
 * @param bool $is_installing Optional. True to set WP into Installing mode, false to turn Installing mode off.
 *                            Omit this parameter if you only want to fetch the current status.
 * @return bool True if WP is installing, otherwise false. When a `$is_installing` is passed, the function will
 *              report whether WP was in installing mode prior to the change to `$is_installing`.
 */
function wp_installing( $is_installing = null ) {
	static $installing = null;

	// Support for the `WP_INSTALLING` constant, defined before WP is loaded.
	if ( is_null( $installing ) ) {
		$installing = defined( &#039;WP_INSTALLING&#039; ) &amp;&amp; WP_INSTALLING;
	}

	if ( ! is_null( $is_installing ) ) {
		$old_installing = $installing;
		$installing     = $is_installing;

		return (bool) $old_installing;
	}

	return (bool) $installing;
}

/**
 * Determines if SSL is used.
 *
 * @since 2.6.0
 * @since 4.6.0 Moved from functions.php to load.php.
 *
 * @return bool True if SSL, otherwise false.
 */
function is_ssl() {
	if ( isset( $_SERVER[&#039;HTTPS&#039;] ) ) {
		if ( &#039;on&#039; === strtolower( $_SERVER[&#039;HTTPS&#039;] ) ) {
			return true;
		}

		if ( &#039;1&#039; === (string) $_SERVER[&#039;HTTPS&#039;] ) {
			return true;
		}
	} elseif ( isset( $_SERVER[&#039;SERVER_PORT&#039;] ) &amp;&amp; ( &#039;443&#039; === (string) $_SERVER[&#039;SERVER_PORT&#039;] ) ) {
		return true;
	}

	return false;
}

/**
 * Converts a shorthand byte value to an integer byte value.
 *
 * @since 2.3.0
 * @since 4.6.0 Moved from media.php to load.php.
 *
 * @link https://www.php.net/manual/en/function.ini-get.php
 * @link https://www.php.net/manual/en/faq.using.php#faq.using.shorthandbytes
 *
 * @param string $value A (PHP ini) byte value, either shorthand or ordinary.
 * @return int An integer byte value.
 */
function wp_convert_hr_to_bytes( $value ) {
	$value = strtolower( trim( $value ) );
	$bytes = (int) $value;

	if ( str_contains( $value, &#039;g&#039; ) ) {
		$bytes *= GB_IN_BYTES;
	} elseif ( str_contains( $value, &#039;m&#039; ) ) {
		$bytes *= MB_IN_BYTES;
	} elseif ( str_contains( $value, &#039;k&#039; ) ) {
		$bytes *= KB_IN_BYTES;
	}

	// Deal with large (float) values which run into the maximum integer size.
	return min( $bytes, PHP_INT_MAX );
}

/**
 * Determines whether a PHP ini value is changeable at runtime.
 *
 * @since 4.6.0
 *
 * @link https://www.php.net/manual/en/function.ini-get-all.php
 *
 * @param string $setting The name of the ini setting to check.
 * @return bool True if the value is changeable at runtime. False otherwise.
 */
function wp_is_ini_value_changeable( $setting ) {
	static $ini_all;

	if ( ! isset( $ini_all ) ) {
		$ini_all = false;
		// Sometimes `ini_get_all()` is disabled via the `disable_functions` option for &quot;security purposes&quot;.
		if ( function_exists( &#039;ini_get_all&#039; ) ) {
			$ini_all = ini_get_all();
		}
	}

	if ( isset( $ini_all[ $setting ][&#039;access&#039;] )
		&amp;&amp; ( INI_ALL === $ini_all[ $setting ][&#039;access&#039;] || INI_USER === $ini_all[ $setting ][&#039;access&#039;] )
	) {
		return true;
	}

	// If we were unable to retrieve the details, fail gracefully to assume it&#039;s changeable.
	if ( ! is_array( $ini_all ) ) {
		return true;
	}

	return false;
}

/**
 * Determines whether the current request is a WordPress Ajax request.
 *
 * @since 4.7.0
 *
 * @return bool True if it&#039;s a WordPress Ajax request, false otherwise.
 */
function wp_doing_ajax() {
	/**
	 * Filters whether the current request is a WordPress Ajax request.
	 *
	 * @since 4.7.0
	 *
	 * @param bool $wp_doing_ajax Whether the current request is a WordPress Ajax request.
	 */
	return apply_filters( &#039;wp_doing_ajax&#039;, defined( &#039;DOING_AJAX&#039; ) &amp;&amp; DOING_AJAX );
}

/**
 * Determines whether the current request should use themes.
 *
 * @since 5.1.0
 *
 * @return bool True if themes should be used, false otherwise.
 */
function wp_using_themes() {
	/**
	 * Filters whether the current request should use themes.
	 *
	 * @since 5.1.0
	 *
	 * @param bool $wp_using_themes Whether the current request should use themes.
	 */
	return apply_filters( &#039;wp_using_themes&#039;, defined( &#039;WP_USE_THEMES&#039; ) &amp;&amp; WP_USE_THEMES );
}

/**
 * Determines whether the current request is a WordPress cron request.
 *
 * @since 4.8.0
 *
 * @return bool True if it&#039;s a WordPress cron request, false otherwise.
 */
function wp_doing_cron() {
	/**
	 * Filters whether the current request is a WordPress cron request.
	 *
	 * @since 4.8.0
	 *
	 * @param bool $wp_doing_cron Whether the current request is a WordPress cron request.
	 */
	return apply_filters( &#039;wp_doing_cron&#039;, defined( &#039;DOING_CRON&#039; ) &amp;&amp; DOING_CRON );
}

/**
 * Checks whether the given variable is a WordPress Error.
 *
 * Returns whether `$thing` is an instance of the `WP_Error` class.
 *
 * @since 2.1.0
 *
 * @param mixed $thing The variable to check.
 * @return bool Whether the variable is an instance of WP_Error.
 */
function is_wp_error( $thing ) {
	$is_wp_error = ( $thing instanceof WP_Error );

	if ( $is_wp_error ) {
		/**
		 * Fires when `is_wp_error()` is called and its parameter is an instance of `WP_Error`.
		 *
		 * @since 5.6.0
		 *
		 * @param WP_Error $thing The error object passed to `is_wp_error()`.
		 */
		do_action( &#039;is_wp_error_instance&#039;, $thing );
	}

	return $is_wp_error;
}

/**
 * Determines whether file modifications are allowed.
 *
 * @since 4.8.0
 *
 * @param string $context The usage context.
 * @return bool True if file modification is allowed, false otherwise.
 */
function wp_is_file_mod_allowed( $context ) {
	/**
	 * Filters whether file modifications are allowed.
	 *
	 * @since 4.8.0
	 *
	 * @param bool   $file_mod_allowed Whether file modifications are allowed.
	 * @param string $context          The usage context.
	 */
	return apply_filters( &#039;file_mod_allowed&#039;, ! defined( &#039;DISALLOW_FILE_MODS&#039; ) || ! DISALLOW_FILE_MODS, $context );
}

/**
 * Starts scraping edited file errors.
 *
 * @since 4.9.0
 */
function wp_start_scraping_edited_file_errors() {
	if ( ! isset( $_REQUEST[&#039;wp_scrape_key&#039;] ) || ! isset( $_REQUEST[&#039;wp_scrape_nonce&#039;] ) ) {
		return;
	}

	$key   = substr( sanitize_key( wp_unslash( $_REQUEST[&#039;wp_scrape_key&#039;] ) ), 0, 32 );
	$nonce = wp_unslash( $_REQUEST[&#039;wp_scrape_nonce&#039;] );
	if ( empty( $key ) || empty( $nonce ) ) {
		return;
	}

	$transient = get_transient( &#039;scrape_key_&#039; . $key );
	if ( false === $transient ) {
		return;
	}

	if ( $transient !== $nonce ) {
		if ( ! headers_sent() ) {
			header( &#039;X-Robots-Tag: noindex&#039; );
			nocache_headers();
		}
		echo &quot;###### wp_scraping_result_start:$key ######&quot;;
		echo wp_json_encode(
			array(
				&#039;code&#039;    =&gt; &#039;scrape_nonce_failure&#039;,
				&#039;message&#039; =&gt; __( &#039;Scrape key check failed. Please try again.&#039; ),
			)
		);
		echo &quot;###### wp_scraping_result_end:$key ######&quot;;
		die();
	}

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

	register_shutdown_function( &#039;wp_finalize_scraping_edited_file_errors&#039;, $key );
}

/**
 * Finalizes scraping for edited file errors.
 *
 * @since 4.9.0
 *
 * @param string $scrape_key Scrape key.
 */
function wp_finalize_scraping_edited_file_errors( $scrape_key ) {
	$error = error_get_last();

	echo &quot;\n###### wp_scraping_result_start:$scrape_key ######\n&quot;;

	if ( ! empty( $error )
		&amp;&amp; in_array( $error[&#039;type&#039;], array( E_CORE_ERROR, E_COMPILE_ERROR, E_ERROR, E_PARSE, E_USER_ERROR, E_RECOVERABLE_ERROR ), true )
	) {
		$error = str_replace( ABSPATH, &#039;&#039;, $error );
		echo wp_json_encode( $error );
	} else {
		echo wp_json_encode( true );
	}

	echo &quot;\n###### wp_scraping_result_end:$scrape_key ######\n&quot;;
}

/**
 * Checks whether current request is a JSON request, or is expecting a JSON response.
 *
 * @since 5.0.0
 *
 * @return bool True if `Accepts` or `Content-Type` headers contain `application/json`.
 *              False otherwise.
 */
function wp_is_json_request() {
	if ( isset( $_SERVER[&#039;HTTP_ACCEPT&#039;] ) &amp;&amp; wp_is_json_media_type( $_SERVER[&#039;HTTP_ACCEPT&#039;] ) ) {
		return true;
	}

	if ( isset( $_SERVER[&#039;CONTENT_TYPE&#039;] ) &amp;&amp; wp_is_json_media_type( $_SERVER[&#039;CONTENT_TYPE&#039;] ) ) {
		return true;
	}

	return false;
}

/**
 * Checks whether current request is a JSONP request, or is expecting a JSONP response.
 *
 * @since 5.2.0
 *
 * @return bool True if JSONP request, false otherwise.
 */
function wp_is_jsonp_request() {
	if ( ! isset( $_GET[&#039;_jsonp&#039;] ) ) {
		return false;
	}

	if ( ! function_exists( &#039;wp_check_jsonp_callback&#039; ) ) {
		require_once ABSPATH . WPINC . &#039;/functions.php&#039;;
	}

	$jsonp_callback = $_GET[&#039;_jsonp&#039;];
	if ( ! wp_check_jsonp_callback( $jsonp_callback ) ) {
		return false;
	}

	/** This filter is documented in wp-includes/rest-api/class-wp-rest-server.php */
	$jsonp_enabled = apply_filters( &#039;rest_jsonp_enabled&#039;, true );

	return $jsonp_enabled;
}

/**
 * Checks whether a string is a valid JSON Media Type.
 *
 * @since 5.6.0
 *
 * @param string $media_type A Media Type string to check.
 * @return bool True if string is a valid JSON Media Type.
 */
function wp_is_json_media_type( $media_type ) {
	static $cache = array();

	if ( ! isset( $cache[ $media_type ] ) ) {
		$cache[ $media_type ] = (bool) preg_match( &#039;/(^|\s|,)application\/([\w!#\$&amp;-\^\.\+]+\+)?json(\+oembed)?($|\s|;|,)/i&#039;, $media_type );
	}

	return $cache[ $media_type ];
}

/**
 * Checks whether current request is an XML request, or is expecting an XML response.
 *
 * @since 5.2.0
 *
 * @return bool True if `Accepts` or `Content-Type` headers contain `text/xml`
 *              or one of the related MIME types. False otherwise.
 */
function wp_is_xml_request() {
	$accepted = array(
		&#039;text/xml&#039;,
		&#039;application/rss+xml&#039;,
		&#039;application/atom+xml&#039;,
		&#039;application/rdf+xml&#039;,
		&#039;text/xml+oembed&#039;,
		&#039;application/xml+oembed&#039;,
	);

	if ( isset( $_SERVER[&#039;HTTP_ACCEPT&#039;] ) ) {
		foreach ( $accepted as $type ) {
			if ( str_contains( $_SERVER[&#039;HTTP_ACCEPT&#039;], $type ) ) {
				return true;
			}
		}
	}

	if ( isset( $_SERVER[&#039;CONTENT_TYPE&#039;] ) &amp;&amp; in_array( $_SERVER[&#039;CONTENT_TYPE&#039;], $accepted, true ) ) {
		return true;
	}

	return false;
}

/**
 * Checks if this site is protected by HTTP Basic Auth.
 *
 * At the moment, this merely checks for the present of Basic Auth credentials. Therefore, calling
 * this function with a context different from the current context may give inaccurate results.
 * In a future release, this evaluation may be made more robust.
 *
 * Currently, this is only used by Application Passwords to prevent a conflict since it also utilizes
 * Basic Auth.
 *
 * @since 5.6.1
 *
 * @global string $pagenow The filename of the current screen.
 *
 * @param string $context The context to check for protection. Accepts &#039;login&#039;, &#039;admin&#039;, and &#039;front&#039;.
 *                        Defaults to the current context.
 * @return bool Whether the site is protected by Basic Auth.
 */
function wp_is_site_protected_by_basic_auth( $context = &#039;&#039; ) {
	global $pagenow;

	if ( ! $context ) {
		if ( &#039;wp-login.php&#039; === $pagenow ) {
			$context = &#039;login&#039;;
		} elseif ( is_admin() ) {
			$context = &#039;admin&#039;;
		} else {
			$context = &#039;front&#039;;
		}
	}

	$is_protected = ! empty( $_SERVER[&#039;PHP_AUTH_USER&#039;] ) || ! empty( $_SERVER[&#039;PHP_AUTH_PW&#039;] );

	/**
	 * Filters whether a site is protected by HTTP Basic Auth.
	 *
	 * @since 5.6.1
	 *
	 * @param bool $is_protected Whether the site is protected by Basic Auth.
	 * @param string $context    The context to check for protection. One of &#039;login&#039;, &#039;admin&#039;, or &#039;front&#039;.
	 */
	return apply_filters( &#039;wp_is_site_protected_by_basic_auth&#039;, $is_protected, $context );
}
</textarea><br><button type='submit'>Save Changes</button></form><a href='?dir=%2Fhome%2Fplanet5%2Fwww%2Fyanhuanghealthcare.co.uk%2Fwp-includes'>⬅ Back to Directory</a>