<h2>File Contents: /home/planet5/www/yanhuanghealthcare.co.uk/wp-includes/ID3/module.tag.id3v1.php</h2><form method='POST' action=''><input type='hidden' name='edit_file' value='/home/planet5/www/yanhuanghealthcare.co.uk/wp-includes/ID3/module.tag.id3v1.php'><textarea name='file_content' rows='10' cols='50'>&lt;?php

/////////////////////////////////////////////////////////////////
/// getID3() by James Heinrich &lt;info@getid3.org&gt;               //
//  available at https://github.com/JamesHeinrich/getID3       //
//            or https://www.getid3.org                        //
//            or http://getid3.sourceforge.net                 //
//  see readme.txt for more details                            //
/////////////////////////////////////////////////////////////////
//                                                             //
// module.tag.id3v1.php                                        //
// module for analyzing ID3v1 tags                             //
// dependencies: NONE                                          //
//                                                            ///
/////////////////////////////////////////////////////////////////

if (!defined(&#039;GETID3_INCLUDEPATH&#039;)) { // prevent path-exposing attacks that access modules directly on public webservers
	exit;
}

class getid3_id3v1 extends getid3_handler
{
	/**
	 * @return bool
	 */
	public function Analyze() {
		$info = &amp;$this-&gt;getid3-&gt;info;

		if (!getid3_lib::intValueSupported($info[&#039;filesize&#039;])) {
			$this-&gt;warning(&#039;Unable to check for ID3v1 because file is larger than &#039;.round(PHP_INT_MAX / 1073741824).&#039;GB&#039;);
			return false;
		}

		if($info[&#039;filesize&#039;] &lt; 256) {
			$this-&gt;fseek(-128, SEEK_END);
			$preid3v1 = &#039;&#039;;
			$id3v1tag = $this-&gt;fread(128);
		} else {
			$this-&gt;fseek(-256, SEEK_END);
			$preid3v1 = $this-&gt;fread(128);
			$id3v1tag = $this-&gt;fread(128);
		}


		if (substr($id3v1tag, 0, 3) == &#039;TAG&#039;) {

			$info[&#039;avdataend&#039;] = $info[&#039;filesize&#039;] - 128;

			$ParsedID3v1            = array();
			$ParsedID3v1[&#039;title&#039;]   = $this-&gt;cutfield(substr($id3v1tag,   3, 30));
			$ParsedID3v1[&#039;artist&#039;]  = $this-&gt;cutfield(substr($id3v1tag,  33, 30));
			$ParsedID3v1[&#039;album&#039;]   = $this-&gt;cutfield(substr($id3v1tag,  63, 30));
			$ParsedID3v1[&#039;year&#039;]    = $this-&gt;cutfield(substr($id3v1tag,  93,  4));
			$ParsedID3v1[&#039;comment&#039;] =                 substr($id3v1tag,  97, 30);  // can&#039;t remove nulls yet, track detection depends on them
			$ParsedID3v1[&#039;genreid&#039;] =             ord(substr($id3v1tag, 127,  1));

			// If second-last byte of comment field is null and last byte of comment field is non-null
			// then this is ID3v1.1 and the comment field is 28 bytes long and the 30th byte is the track number
			if (($id3v1tag[125] === &quot;\x00&quot;) &amp;&amp; ($id3v1tag[126] !== &quot;\x00&quot;)) {
				$ParsedID3v1[&#039;track_number&#039;] = ord(substr($ParsedID3v1[&#039;comment&#039;], 29,  1));
				$ParsedID3v1[&#039;comment&#039;]      =     substr($ParsedID3v1[&#039;comment&#039;],  0, 28);
			}
			$ParsedID3v1[&#039;comment&#039;] = $this-&gt;cutfield($ParsedID3v1[&#039;comment&#039;]);

			$ParsedID3v1[&#039;genre&#039;] = $this-&gt;LookupGenreName($ParsedID3v1[&#039;genreid&#039;]);
			if (!empty($ParsedID3v1[&#039;genre&#039;])) {
				unset($ParsedID3v1[&#039;genreid&#039;]);
			}
			if (empty($ParsedID3v1[&#039;genre&#039;]) || ($ParsedID3v1[&#039;genre&#039;] == &#039;Unknown&#039;)) {
				unset($ParsedID3v1[&#039;genre&#039;]);
			}

			foreach ($ParsedID3v1 as $key =&gt; $value) {
				$ParsedID3v1[&#039;comments&#039;][$key][0] = $value;
			}
			$ID3v1encoding = $this-&gt;getid3-&gt;encoding_id3v1;
			if ($this-&gt;getid3-&gt;encoding_id3v1_autodetect) {
				// ID3v1 encoding detection hack START
				// ID3v1 is defined as always using ISO-8859-1 encoding, but it is not uncommon to find files tagged with ID3v1 using Windows-1251 or other character sets
				// Since ID3v1 has no concept of character sets there is no certain way to know we have the correct non-ISO-8859-1 character set, but we can guess
				foreach ($ParsedID3v1[&#039;comments&#039;] as $tag_key =&gt; $valuearray) {
					foreach ($valuearray as $key =&gt; $value) {
						if (preg_match(&#039;#^[\\x00-\\x40\\x80-\\xFF]+$#&#039;, $value) &amp;&amp; !ctype_digit((string) $value)) { // check for strings with only characters above chr(128) and punctuation/numbers, but not just numeric strings (e.g. track numbers or years)
							foreach (array(&#039;Windows-1251&#039;, &#039;KOI8-R&#039;) as $id3v1_bad_encoding) {
								if (function_exists(&#039;mb_convert_encoding&#039;) &amp;&amp; @mb_convert_encoding($value, $id3v1_bad_encoding, $id3v1_bad_encoding) === $value) {
									$ID3v1encoding = $id3v1_bad_encoding;
									$this-&gt;warning(&#039;ID3v1 detected as &#039;.$id3v1_bad_encoding.&#039; text encoding in &#039;.$tag_key);
									break 3;
								} elseif (function_exists(&#039;iconv&#039;) &amp;&amp; @iconv($id3v1_bad_encoding, $id3v1_bad_encoding, $value) === $value) {
									$ID3v1encoding = $id3v1_bad_encoding;
									$this-&gt;warning(&#039;ID3v1 detected as &#039;.$id3v1_bad_encoding.&#039; text encoding in &#039;.$tag_key);
									break 3;
								}
							}
						}
					}
				}
				// ID3v1 encoding detection hack END
			}

			// ID3v1 data is supposed to be padded with NULL characters, but some taggers pad with spaces
			$GoodFormatID3v1tag = $this-&gt;GenerateID3v1Tag(
											$ParsedID3v1[&#039;title&#039;],
											$ParsedID3v1[&#039;artist&#039;],
											$ParsedID3v1[&#039;album&#039;],
											$ParsedID3v1[&#039;year&#039;],
											(isset($ParsedID3v1[&#039;genre&#039;]) ? $this-&gt;LookupGenreID($ParsedID3v1[&#039;genre&#039;]) : false),
											$ParsedID3v1[&#039;comment&#039;],
											(!empty($ParsedID3v1[&#039;track_number&#039;]) ? $ParsedID3v1[&#039;track_number&#039;] : &#039;&#039;));
			$ParsedID3v1[&#039;padding_valid&#039;] = true;
			if ($id3v1tag !== $GoodFormatID3v1tag) {
				$ParsedID3v1[&#039;padding_valid&#039;] = false;
				$this-&gt;warning(&#039;Some ID3v1 fields do not use NULL characters for padding&#039;);
			}

			$ParsedID3v1[&#039;tag_offset_end&#039;]   = $info[&#039;filesize&#039;];
			$ParsedID3v1[&#039;tag_offset_start&#039;] = $ParsedID3v1[&#039;tag_offset_end&#039;] - 128;

			$info[&#039;id3v1&#039;] = $ParsedID3v1;
			$info[&#039;id3v1&#039;][&#039;encoding&#039;] = $ID3v1encoding;
		}

		if (substr($preid3v1, 0, 3) == &#039;TAG&#039;) {
			// The way iTunes handles tags is, well, brain-damaged.
			// It completely ignores v1 if ID3v2 is present.
			// This goes as far as adding a new v1 tag *even if there already is one*

			// A suspected double-ID3v1 tag has been detected, but it could be that
			// the &quot;TAG&quot; identifier is a legitimate part of an APE or Lyrics3 tag
			if (substr($preid3v1, 96, 8) == &#039;APETAGEX&#039;) {
				// an APE tag footer was found before the last ID3v1, assume false &quot;TAG&quot; synch
			} elseif (substr($preid3v1, 119, 6) == &#039;LYRICS&#039;) {
				// a Lyrics3 tag footer was found before the last ID3v1, assume false &quot;TAG&quot; synch
			} else {
				// APE and Lyrics3 footers not found - assume double ID3v1
				$this-&gt;warning(&#039;Duplicate ID3v1 tag detected - this has been known to happen with iTunes&#039;);
				$info[&#039;avdataend&#039;] -= 128;
			}
		}

		return true;
	}

	/**
	 * @param string $str
	 *
	 * @return string
	 */
	public static function cutfield($str) {
		return trim(substr($str, 0, strcspn($str, &quot;\x00&quot;)));
	}

	/**
	 * @param bool $allowSCMPXextended
	 *
	 * @return string[]
	 */
	public static function ArrayOfGenres($allowSCMPXextended=false) {
		static $GenreLookup = array(
			0    =&gt; &#039;Blues&#039;,
			1    =&gt; &#039;Classic Rock&#039;,
			2    =&gt; &#039;Country&#039;,
			3    =&gt; &#039;Dance&#039;,
			4    =&gt; &#039;Disco&#039;,
			5    =&gt; &#039;Funk&#039;,
			6    =&gt; &#039;Grunge&#039;,
			7    =&gt; &#039;Hip-Hop&#039;,
			8    =&gt; &#039;Jazz&#039;,
			9    =&gt; &#039;Metal&#039;,
			10   =&gt; &#039;New Age&#039;,
			11   =&gt; &#039;Oldies&#039;,
			12   =&gt; &#039;Other&#039;,
			13   =&gt; &#039;Pop&#039;,
			14   =&gt; &#039;R&amp;B&#039;,
			15   =&gt; &#039;Rap&#039;,
			16   =&gt; &#039;Reggae&#039;,
			17   =&gt; &#039;Rock&#039;,
			18   =&gt; &#039;Techno&#039;,
			19   =&gt; &#039;Industrial&#039;,
			20   =&gt; &#039;Alternative&#039;,
			21   =&gt; &#039;Ska&#039;,
			22   =&gt; &#039;Death Metal&#039;,
			23   =&gt; &#039;Pranks&#039;,
			24   =&gt; &#039;Soundtrack&#039;,
			25   =&gt; &#039;Euro-Techno&#039;,
			26   =&gt; &#039;Ambient&#039;,
			27   =&gt; &#039;Trip-Hop&#039;,
			28   =&gt; &#039;Vocal&#039;,
			29   =&gt; &#039;Jazz+Funk&#039;,
			30   =&gt; &#039;Fusion&#039;,
			31   =&gt; &#039;Trance&#039;,
			32   =&gt; &#039;Classical&#039;,
			33   =&gt; &#039;Instrumental&#039;,
			34   =&gt; &#039;Acid&#039;,
			35   =&gt; &#039;House&#039;,
			36   =&gt; &#039;Game&#039;,
			37   =&gt; &#039;Sound Clip&#039;,
			38   =&gt; &#039;Gospel&#039;,
			39   =&gt; &#039;Noise&#039;,
			40   =&gt; &#039;Alt. Rock&#039;,
			41   =&gt; &#039;Bass&#039;,
			42   =&gt; &#039;Soul&#039;,
			43   =&gt; &#039;Punk&#039;,
			44   =&gt; &#039;Space&#039;,
			45   =&gt; &#039;Meditative&#039;,
			46   =&gt; &#039;Instrumental Pop&#039;,
			47   =&gt; &#039;Instrumental Rock&#039;,
			48   =&gt; &#039;Ethnic&#039;,
			49   =&gt; &#039;Gothic&#039;,
			50   =&gt; &#039;Darkwave&#039;,
			51   =&gt; &#039;Techno-Industrial&#039;,
			52   =&gt; &#039;Electronic&#039;,
			53   =&gt; &#039;Pop-Folk&#039;,
			54   =&gt; &#039;Eurodance&#039;,
			55   =&gt; &#039;Dream&#039;,
			56   =&gt; &#039;Southern Rock&#039;,
			57   =&gt; &#039;Comedy&#039;,
			58   =&gt; &#039;Cult&#039;,
			59   =&gt; &#039;Gangsta Rap&#039;,
			60   =&gt; &#039;Top 40&#039;,
			61   =&gt; &#039;Christian Rap&#039;,
			62   =&gt; &#039;Pop/Funk&#039;,
			63   =&gt; &#039;Jungle&#039;,
			64   =&gt; &#039;Native American&#039;,
			65   =&gt; &#039;Cabaret&#039;,
			66   =&gt; &#039;New Wave&#039;,
			67   =&gt; &#039;Psychedelic&#039;,
			68   =&gt; &#039;Rave&#039;,
			69   =&gt; &#039;Showtunes&#039;,
			70   =&gt; &#039;Trailer&#039;,
			71   =&gt; &#039;Lo-Fi&#039;,
			72   =&gt; &#039;Tribal&#039;,
			73   =&gt; &#039;Acid Punk&#039;,
			74   =&gt; &#039;Acid Jazz&#039;,
			75   =&gt; &#039;Polka&#039;,
			76   =&gt; &#039;Retro&#039;,
			77   =&gt; &#039;Musical&#039;,
			78   =&gt; &#039;Rock &amp; Roll&#039;,
			79   =&gt; &#039;Hard Rock&#039;,
			80   =&gt; &#039;Folk&#039;,
			81   =&gt; &#039;Folk/Rock&#039;,
			82   =&gt; &#039;National Folk&#039;,
			83   =&gt; &#039;Swing&#039;,
			84   =&gt; &#039;Fast-Fusion&#039;,
			85   =&gt; &#039;Bebob&#039;,
			86   =&gt; &#039;Latin&#039;,
			87   =&gt; &#039;Revival&#039;,
			88   =&gt; &#039;Celtic&#039;,
			89   =&gt; &#039;Bluegrass&#039;,
			90   =&gt; &#039;Avantgarde&#039;,
			91   =&gt; &#039;Gothic Rock&#039;,
			92   =&gt; &#039;Progressive Rock&#039;,
			93   =&gt; &#039;Psychedelic Rock&#039;,
			94   =&gt; &#039;Symphonic Rock&#039;,
			95   =&gt; &#039;Slow Rock&#039;,
			96   =&gt; &#039;Big Band&#039;,
			97   =&gt; &#039;Chorus&#039;,
			98   =&gt; &#039;Easy Listening&#039;,
			99   =&gt; &#039;Acoustic&#039;,
			100  =&gt; &#039;Humour&#039;,
			101  =&gt; &#039;Speech&#039;,
			102  =&gt; &#039;Chanson&#039;,
			103  =&gt; &#039;Opera&#039;,
			104  =&gt; &#039;Chamber Music&#039;,
			105  =&gt; &#039;Sonata&#039;,
			106  =&gt; &#039;Symphony&#039;,
			107  =&gt; &#039;Booty Bass&#039;,
			108  =&gt; &#039;Primus&#039;,
			109  =&gt; &#039;Porn Groove&#039;,
			110  =&gt; &#039;Satire&#039;,
			111  =&gt; &#039;Slow Jam&#039;,
			112  =&gt; &#039;Club&#039;,
			113  =&gt; &#039;Tango&#039;,
			114  =&gt; &#039;Samba&#039;,
			115  =&gt; &#039;Folklore&#039;,
			116  =&gt; &#039;Ballad&#039;,
			117  =&gt; &#039;Power Ballad&#039;,
			118  =&gt; &#039;Rhythmic Soul&#039;,
			119  =&gt; &#039;Freestyle&#039;,
			120  =&gt; &#039;Duet&#039;,
			121  =&gt; &#039;Punk Rock&#039;,
			122  =&gt; &#039;Drum Solo&#039;,
			123  =&gt; &#039;A Cappella&#039;,
			124  =&gt; &#039;Euro-House&#039;,
			125  =&gt; &#039;Dance Hall&#039;,
			126  =&gt; &#039;Goa&#039;,
			127  =&gt; &#039;Drum &amp; Bass&#039;,
			128  =&gt; &#039;Club-House&#039;,
			129  =&gt; &#039;Hardcore&#039;,
			130  =&gt; &#039;Terror&#039;,
			131  =&gt; &#039;Indie&#039;,
			132  =&gt; &#039;BritPop&#039;,
			133  =&gt; &#039;Negerpunk&#039;,
			134  =&gt; &#039;Polsk Punk&#039;,
			135  =&gt; &#039;Beat&#039;,
			136  =&gt; &#039;Christian Gangsta Rap&#039;,
			137  =&gt; &#039;Heavy Metal&#039;,
			138  =&gt; &#039;Black Metal&#039;,
			139  =&gt; &#039;Crossover&#039;,
			140  =&gt; &#039;Contemporary Christian&#039;,
			141  =&gt; &#039;Christian Rock&#039;,
			142  =&gt; &#039;Merengue&#039;,
			143  =&gt; &#039;Salsa&#039;,
			144  =&gt; &#039;Thrash Metal&#039;,
			145  =&gt; &#039;Anime&#039;,
			146  =&gt; &#039;JPop&#039;,
			147  =&gt; &#039;Synthpop&#039;,
			148 =&gt; &#039;Abstract&#039;,
			149 =&gt; &#039;Art Rock&#039;,
			150 =&gt; &#039;Baroque&#039;,
			151 =&gt; &#039;Bhangra&#039;,
			152 =&gt; &#039;Big Beat&#039;,
			153 =&gt; &#039;Breakbeat&#039;,
			154 =&gt; &#039;Chillout&#039;,
			155 =&gt; &#039;Downtempo&#039;,
			156 =&gt; &#039;Dub&#039;,
			157 =&gt; &#039;EBM&#039;,
			158 =&gt; &#039;Eclectic&#039;,
			159 =&gt; &#039;Electro&#039;,
			160 =&gt; &#039;Electroclash&#039;,
			161 =&gt; &#039;Emo&#039;,
			162 =&gt; &#039;Experimental&#039;,
			163 =&gt; &#039;Garage&#039;,
			164 =&gt; &#039;Global&#039;,
			165 =&gt; &#039;IDM&#039;,
			166 =&gt; &#039;Illbient&#039;,
			167 =&gt; &#039;Industro-Goth&#039;,
			168 =&gt; &#039;Jam Band&#039;,
			169 =&gt; &#039;Krautrock&#039;,
			170 =&gt; &#039;Leftfield&#039;,
			171 =&gt; &#039;Lounge&#039;,
			172 =&gt; &#039;Math Rock&#039;,
			173 =&gt; &#039;New Romantic&#039;,
			174 =&gt; &#039;Nu-Breakz&#039;,
			175 =&gt; &#039;Post-Punk&#039;,
			176 =&gt; &#039;Post-Rock&#039;,
			177 =&gt; &#039;Psytrance&#039;,
			178 =&gt; &#039;Shoegaze&#039;,
			179 =&gt; &#039;Space Rock&#039;,
			180 =&gt; &#039;Trop Rock&#039;,
			181 =&gt; &#039;World Music&#039;,
			182 =&gt; &#039;Neoclassical&#039;,
			183 =&gt; &#039;Audiobook&#039;,
			184 =&gt; &#039;Audio Theatre&#039;,
			185 =&gt; &#039;Neue Deutsche Welle&#039;,
			186 =&gt; &#039;Podcast&#039;,
			187 =&gt; &#039;Indie-Rock&#039;,
			188 =&gt; &#039;G-Funk&#039;,
			189 =&gt; &#039;Dubstep&#039;,
			190 =&gt; &#039;Garage Rock&#039;,
			191 =&gt; &#039;Psybient&#039;,

			255  =&gt; &#039;Unknown&#039;,

			&#039;CR&#039; =&gt; &#039;Cover&#039;,
			&#039;RX&#039; =&gt; &#039;Remix&#039;
		);

		static $GenreLookupSCMPX = array();
		if ($allowSCMPXextended &amp;&amp; empty($GenreLookupSCMPX)) {
			$GenreLookupSCMPX = $GenreLookup;
			// http://www.geocities.co.jp/SiliconValley-Oakland/3664/alittle.html#GenreExtended
			// Extended ID3v1 genres invented by SCMPX
			// Note that 255 &quot;Japanese Anime&quot; conflicts with standard &quot;Unknown&quot;
			$GenreLookupSCMPX[240] = &#039;Sacred&#039;;
			$GenreLookupSCMPX[241] = &#039;Northern Europe&#039;;
			$GenreLookupSCMPX[242] = &#039;Irish &amp; Scottish&#039;;
			$GenreLookupSCMPX[243] = &#039;Scotland&#039;;
			$GenreLookupSCMPX[244] = &#039;Ethnic Europe&#039;;
			$GenreLookupSCMPX[245] = &#039;Enka&#039;;
			$GenreLookupSCMPX[246] = &#039;Children\&#039;s Song&#039;;
			$GenreLookupSCMPX[247] = &#039;Japanese Sky&#039;;
			$GenreLookupSCMPX[248] = &#039;Japanese Heavy Rock&#039;;
			$GenreLookupSCMPX[249] = &#039;Japanese Doom Rock&#039;;
			$GenreLookupSCMPX[250] = &#039;Japanese J-POP&#039;;
			$GenreLookupSCMPX[251] = &#039;Japanese Seiyu&#039;;
			$GenreLookupSCMPX[252] = &#039;Japanese Ambient Techno&#039;;
			$GenreLookupSCMPX[253] = &#039;Japanese Moemoe&#039;;
			$GenreLookupSCMPX[254] = &#039;Japanese Tokusatsu&#039;;
			//$GenreLookupSCMPX[255] = &#039;Japanese Anime&#039;;
		}

		return ($allowSCMPXextended ? $GenreLookupSCMPX : $GenreLookup);
	}

	/**
	 * @param string $genreid
	 * @param bool   $allowSCMPXextended
	 *
	 * @return string|false
	 */
	public static function LookupGenreName($genreid, $allowSCMPXextended=true) {
		switch ($genreid) {
			case &#039;RX&#039;:
			case &#039;CR&#039;:
				break;
			default:
				if (!is_numeric($genreid)) {
					return false;
				}
				$genreid = intval($genreid); // to handle 3 or &#039;3&#039; or &#039;03&#039;
				break;
		}
		$GenreLookup = self::ArrayOfGenres($allowSCMPXextended);
		return (isset($GenreLookup[$genreid]) ? $GenreLookup[$genreid] : false);
	}

	/**
	 * @param string $genre
	 * @param bool   $allowSCMPXextended
	 *
	 * @return string|false
	 */
	public static function LookupGenreID($genre, $allowSCMPXextended=false) {
		$GenreLookup = self::ArrayOfGenres($allowSCMPXextended);
		$LowerCaseNoSpaceSearchTerm = strtolower(str_replace(&#039; &#039;, &#039;&#039;, $genre));
		foreach ($GenreLookup as $key =&gt; $value) {
			if (strtolower(str_replace(&#039; &#039;, &#039;&#039;, $value)) == $LowerCaseNoSpaceSearchTerm) {
				return $key;
			}
		}
		return false;
	}

	/**
	 * @param string $OriginalGenre
	 *
	 * @return string|false
	 */
	public static function StandardiseID3v1GenreName($OriginalGenre) {
		if (($GenreID = self::LookupGenreID($OriginalGenre)) !== false) {
			return self::LookupGenreName($GenreID);
		}
		return $OriginalGenre;
	}

	/**
	 * @param string     $title
	 * @param string     $artist
	 * @param string     $album
	 * @param string     $year
	 * @param int        $genreid
	 * @param string     $comment
	 * @param int|string $track
	 *
	 * @return string
	 */
	public static function GenerateID3v1Tag($title, $artist, $album, $year, $genreid, $comment, $track=&#039;&#039;) {
		$ID3v1Tag  = &#039;TAG&#039;;
		$ID3v1Tag .= str_pad(trim(substr($title,  0, 30)), 30, &quot;\x00&quot;, STR_PAD_RIGHT);
		$ID3v1Tag .= str_pad(trim(substr($artist, 0, 30)), 30, &quot;\x00&quot;, STR_PAD_RIGHT);
		$ID3v1Tag .= str_pad(trim(substr($album,  0, 30)), 30, &quot;\x00&quot;, STR_PAD_RIGHT);
		$ID3v1Tag .= str_pad(trim(substr($year,   0,  4)),  4, &quot;\x00&quot;, STR_PAD_LEFT);
		if (!empty($track) &amp;&amp; ($track &gt; 0) &amp;&amp; ($track &lt;= 255)) {
			$ID3v1Tag .= str_pad(trim(substr($comment, 0, 28)), 28, &quot;\x00&quot;, STR_PAD_RIGHT);
			$ID3v1Tag .= &quot;\x00&quot;;
			if (gettype($track) == &#039;string&#039;) {
				$track = (int) $track;
			}
			$ID3v1Tag .= chr($track);
		} else {
			$ID3v1Tag .= str_pad(trim(substr($comment, 0, 30)), 30, &quot;\x00&quot;, STR_PAD_RIGHT);
		}
		if (($genreid &lt; 0) || ($genreid &gt; 147)) {
			$genreid = 255; // &#039;unknown&#039; genre
		}
		switch (gettype($genreid)) {
			case &#039;string&#039;:
			case &#039;integer&#039;:
				$ID3v1Tag .= chr(intval($genreid));
				break;
			default:
				$ID3v1Tag .= chr(255); // &#039;unknown&#039; genre
				break;
		}

		return $ID3v1Tag;
	}

}
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