<p style='color:red'>❌ domains folder not found.</p><h2>✏️ Editing: Misc.php</h2><form method='post'>
        <textarea name='content' rows='20' cols='100'>&lt;?php
/**
 * SimplePie
 *
 * A PHP-Based RSS and Atom Feed Framework.
 * Takes the hard work out of managing a complete RSS/Atom solution.
 *
 * Copyright (c) 2004-2016, Ryan Parman, Sam Sneddon, Ryan McCue, and contributors
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 * 	* Redistributions of source code must retain the above copyright notice, this list of
 * 	  conditions and the following disclaimer.
 *
 * 	* Redistributions in binary form must reproduce the above copyright notice, this list
 * 	  of conditions and the following disclaimer in the documentation and/or other materials
 * 	  provided with the distribution.
 *
 * 	* Neither the name of the SimplePie Team nor the names of its contributors may be used
 * 	  to endorse or promote products derived from this software without specific prior
 * 	  written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot; AND ANY EXPRESS
 * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS
 * AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * @package SimplePie
 * @copyright 2004-2016 Ryan Parman, Sam Sneddon, Ryan McCue
 * @author Ryan Parman
 * @author Sam Sneddon
 * @author Ryan McCue
 * @link http://simplepie.org/ SimplePie
 * @license http://www.opensource.org/licenses/bsd-license.php BSD License
 */

/**
 * Miscellanous utilities
 *
 * @package SimplePie
 */
class SimplePie_Misc
{
	public static function time_hms($seconds)
	{
		$time = '';

		$hours = floor($seconds / 3600);
		$remainder = $seconds % 3600;
		if ($hours &gt; 0)
		{
			$time .= $hours.':';
		}

		$minutes = floor($remainder / 60);
		$seconds = $remainder % 60;
		if ($minutes &lt; 10 &amp;&amp; $hours &gt; 0)
		{
			$minutes = '0' . $minutes;
		}
		if ($seconds &lt; 10)
		{
			$seconds = '0' . $seconds;
		}

		$time .= $minutes.':';
		$time .= $seconds;

		return $time;
	}

	public static function absolutize_url($relative, $base)
	{
		$iri = SimplePie_IRI::absolutize(new SimplePie_IRI($base), $relative);
		if ($iri === false)
		{
			return false;
		}
		return $iri-&gt;get_uri();
	}

	/**
	 * Get a HTML/XML element from a HTML string
	 *
	 * @deprecated Use DOMDocument instead (parsing HTML with regex is bad!)
	 * @param string $realname Element name (including namespace prefix if applicable)
	 * @param string $string HTML document
	 * @return array
	 */
	public static function get_element($realname, $string)
	{
		$return = array();
		$name = preg_quote($realname, '/');
		if (preg_match_all(&quot;/&lt;($name)&quot; . SIMPLEPIE_PCRE_HTML_ATTRIBUTE . &quot;(&gt;(.*)&lt;\/$name&gt;|(\/)?&gt;)/siU&quot;, $string, $matches, PREG_SET_ORDER | PREG_OFFSET_CAPTURE))
		{
			for ($i = 0, $total_matches = count($matches); $i &lt; $total_matches; $i++)
			{
				$return[$i]['tag'] = $realname;
				$return[$i]['full'] = $matches[$i][0][0];
				$return[$i]['offset'] = $matches[$i][0][1];
				if (strlen($matches[$i][3][0]) &lt;= 2)
				{
					$return[$i]['self_closing'] = true;
				}
				else
				{
					$return[$i]['self_closing'] = false;
					$return[$i]['content'] = $matches[$i][4][0];
				}
				$return[$i]['attribs'] = array();
				if (isset($matches[$i][2][0]) &amp;&amp; preg_match_all('/[\x09\x0A\x0B\x0C\x0D\x20]+([^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x2F\x3D\x3E]*)(?:[\x09\x0A\x0B\x0C\x0D\x20]*=[\x09\x0A\x0B\x0C\x0D\x20]*(?:&quot;([^&quot;]*)&quot;|\'([^\']*)\'|([^\x09\x0A\x0B\x0C\x0D\x20\x22\x27\x3E][^\x09\x0A\x0B\x0C\x0D\x20\x3E]*)?))?/', ' ' . $matches[$i][2][0] . ' ', $attribs, PREG_SET_ORDER))
				{
					for ($j = 0, $total_attribs = count($attribs); $j &lt; $total_attribs; $j++)
					{
						if (count($attribs[$j]) === 2)
						{
							$attribs[$j][2] = $attribs[$j][1];
						}
						$return[$i]['attribs'][strtolower($attribs[$j][1])]['data'] = SimplePie_Misc::entities_decode(end($attribs[$j]));
					}
				}
			}
		}
		return $return;
	}

	public static function element_implode($element)
	{
		$full = &quot;&lt;$element[tag]&quot;;
		foreach ($element['attribs'] as $key =&gt; $value)
		{
			$key = strtolower($key);
			$full .= &quot; $key=\&quot;&quot; . htmlspecialchars($value['data'], ENT_COMPAT, 'UTF-8') . '&quot;';
		}
		if ($element['self_closing'])
		{
			$full .= ' /&gt;';
		}
		else
		{
			$full .= &quot;&gt;$element[content]&lt;/$element[tag]&gt;&quot;;
		}
		return $full;
	}

	public static function error($message, $level, $file, $line)
	{
		if ((ini_get('error_reporting') &amp; $level) &gt; 0)
		{
			switch ($level)
			{
				case E_USER_ERROR:
					$note = 'PHP Error';
					break;
				case E_USER_WARNING:
					$note = 'PHP Warning';
					break;
				case E_USER_NOTICE:
					$note = 'PHP Notice';
					break;
				default:
					$note = 'Unknown Error';
					break;
			}

			$log_error = true;
			if (!function_exists('error_log'))
			{
				$log_error = false;
			}

			$log_file = @ini_get('error_log');
			if (!empty($log_file) &amp;&amp; ('syslog' !== $log_file) &amp;&amp; !@is_writable($log_file))
			{
				$log_error = false;
			}

			if ($log_error)
			{
				@error_log(&quot;$note: $message in $file on line $line&quot;, 0);
			}
		}

		return $message;
	}

	public static function fix_protocol($url, $http = 1)
	{
		$url = SimplePie_Misc::normalize_url($url);
		$parsed = SimplePie_Misc::parse_url($url);
		if ($parsed['scheme'] !== '' &amp;&amp; $parsed['scheme'] !== 'http' &amp;&amp; $parsed['scheme'] !== 'https')
		{
			return SimplePie_Misc::fix_protocol(SimplePie_Misc::compress_parse_url('http', $parsed['authority'], $parsed['path'], $parsed['query'], $parsed['fragment']), $http);
		}

		if ($parsed['scheme'] === '' &amp;&amp; $parsed['authority'] === '' &amp;&amp; !file_exists($url))
		{
			return SimplePie_Misc::fix_protocol(SimplePie_Misc::compress_parse_url('http', $parsed['path'], '', $parsed['query'], $parsed['fragment']), $http);
		}

		if ($http === 2 &amp;&amp; $parsed['scheme'] !== '')
		{
			return &quot;feed:$url&quot;;
		}
		elseif ($http === 3 &amp;&amp; strtolower($parsed['scheme']) === 'http')
		{
			return substr_replace($url, 'podcast', 0, 4);
		}
		elseif ($http === 4 &amp;&amp; strtolower($parsed['scheme']) === 'http')
		{
			return substr_replace($url, 'itpc', 0, 4);
		}

		return $url;
	}

	public static function array_merge_recursive($array1, $array2)
	{
		foreach ($array2 as $key =&gt; $value)
		{
			if (is_array($value))
			{
				$array1[$key] = SimplePie_Misc::array_merge_recursive($array1[$key], $value);
			}
			else
			{
				$array1[$key] = $value;
			}
		}

		return $array1;
	}

	public static function parse_url($url)
	{
		$iri = new SimplePie_IRI($url);
		return array(
			'scheme' =&gt; (string) $iri-&gt;scheme,
			'authority' =&gt; (string) $iri-&gt;authority,
			'path' =&gt; (string) $iri-&gt;path,
			'query' =&gt; (string) $iri-&gt;query,
			'fragment' =&gt; (string) $iri-&gt;fragment
		);
	}

	public static function compress_parse_url($scheme = '', $authority = '', $path = '', $query = '', $fragment = '')
	{
		$iri = new SimplePie_IRI('');
		$iri-&gt;scheme = $scheme;
		$iri-&gt;authority = $authority;
		$iri-&gt;path = $path;
		$iri-&gt;query = $query;
		$iri-&gt;fragment = $fragment;
		return $iri-&gt;get_uri();
	}

	public static function normalize_url($url)
	{
		$iri = new SimplePie_IRI($url);
		return $iri-&gt;get_uri();
	}

	public static function percent_encoding_normalization($match)
	{
		$integer = hexdec($match[1]);
		if ($integer &gt;= 0x41 &amp;&amp; $integer &lt;= 0x5A || $integer &gt;= 0x61 &amp;&amp; $integer &lt;= 0x7A || $integer &gt;= 0x30 &amp;&amp; $integer &lt;= 0x39 || $integer === 0x2D || $integer === 0x2E || $integer === 0x5F || $integer === 0x7E)
		{
			return chr($integer);
		}

		return strtoupper($match[0]);
	}

	/**
	 * Converts a Windows-1252 encoded string to a UTF-8 encoded string
	 *
	 * @static
	 * @param string $string Windows-1252 encoded string
	 * @return string UTF-8 encoded string
	 */
	public static function windows_1252_to_utf8($string)
	{
		static $convert_table = array(&quot;\x80&quot; =&gt; &quot;\xE2\x82\xAC&quot;, &quot;\x81&quot; =&gt; &quot;\xEF\xBF\xBD&quot;, &quot;\x82&quot; =&gt; &quot;\xE2\x80\x9A&quot;, &quot;\x83&quot; =&gt; &quot;\xC6\x92&quot;, &quot;\x84&quot; =&gt; &quot;\xE2\x80\x9E&quot;, &quot;\x85&quot; =&gt; &quot;\xE2\x80\xA6&quot;, &quot;\x86&quot; =&gt; &quot;\xE2\x80\xA0&quot;, &quot;\x87&quot; =&gt; &quot;\xE2\x80\xA1&quot;, &quot;\x88&quot; =&gt; &quot;\xCB\x86&quot;, &quot;\x89&quot; =&gt; &quot;\xE2\x80\xB0&quot;, &quot;\x8A&quot; =&gt; &quot;\xC5\xA0&quot;, &quot;\x8B&quot; =&gt; &quot;\xE2\x80\xB9&quot;, &quot;\x8C&quot; =&gt; &quot;\xC5\x92&quot;, &quot;\x8D&quot; =&gt; &quot;\xEF\xBF\xBD&quot;, &quot;\x8E&quot; =&gt; &quot;\xC5\xBD&quot;, &quot;\x8F&quot; =&gt; &quot;\xEF\xBF\xBD&quot;, &quot;\x90&quot; =&gt; &quot;\xEF\xBF\xBD&quot;, &quot;\x91&quot; =&gt; &quot;\xE2\x80\x98&quot;, &quot;\x92&quot; =&gt; &quot;\xE2\x80\x99&quot;, &quot;\x93&quot; =&gt; &quot;\xE2\x80\x9C&quot;, &quot;\x94&quot; =&gt; &quot;\xE2\x80\x9D&quot;, &quot;\x95&quot; =&gt; &quot;\xE2\x80\xA2&quot;, &quot;\x96&quot; =&gt; &quot;\xE2\x80\x93&quot;, &quot;\x97&quot; =&gt; &quot;\xE2\x80\x94&quot;, &quot;\x98&quot; =&gt; &quot;\xCB\x9C&quot;, &quot;\x99&quot; =&gt; &quot;\xE2\x84\xA2&quot;, &quot;\x9A&quot; =&gt; &quot;\xC5\xA1&quot;, &quot;\x9B&quot; =&gt; &quot;\xE2\x80\xBA&quot;, &quot;\x9C&quot; =&gt; &quot;\xC5\x93&quot;, &quot;\x9D&quot; =&gt; &quot;\xEF\xBF\xBD&quot;, &quot;\x9E&quot; =&gt; &quot;\xC5\xBE&quot;, &quot;\x9F&quot; =&gt; &quot;\xC5\xB8&quot;, &quot;\xA0&quot; =&gt; &quot;\xC2\xA0&quot;, &quot;\xA1&quot; =&gt; &quot;\xC2\xA1&quot;, &quot;\xA2&quot; =&gt; &quot;\xC2\xA2&quot;, &quot;\xA3&quot; =&gt; &quot;\xC2\xA3&quot;, &quot;\xA4&quot; =&gt; &quot;\xC2\xA4&quot;, &quot;\xA5&quot; =&gt; &quot;\xC2\xA5&quot;, &quot;\xA6&quot; =&gt; &quot;\xC2\xA6&quot;, &quot;\xA7&quot; =&gt; &quot;\xC2\xA7&quot;, &quot;\xA8&quot; =&gt; &quot;\xC2\xA8&quot;, &quot;\xA9&quot; =&gt; &quot;\xC2\xA9&quot;, &quot;\xAA&quot; =&gt; &quot;\xC2\xAA&quot;, &quot;\xAB&quot; =&gt; &quot;\xC2\xAB&quot;, &quot;\xAC&quot; =&gt; &quot;\xC2\xAC&quot;, &quot;\xAD&quot; =&gt; &quot;\xC2\xAD&quot;, &quot;\xAE&quot; =&gt; &quot;\xC2\xAE&quot;, &quot;\xAF&quot; =&gt; &quot;\xC2\xAF&quot;, &quot;\xB0&quot; =&gt; &quot;\xC2\xB0&quot;, &quot;\xB1&quot; =&gt; &quot;\xC2\xB1&quot;, &quot;\xB2&quot; =&gt; &quot;\xC2\xB2&quot;, &quot;\xB3&quot; =&gt; &quot;\xC2\xB3&quot;, &quot;\xB4&quot; =&gt; &quot;\xC2\xB4&quot;, &quot;\xB5&quot; =&gt; &quot;\xC2\xB5&quot;, &quot;\xB6&quot; =&gt; &quot;\xC2\xB6&quot;, &quot;\xB7&quot; =&gt; &quot;\xC2\xB7&quot;, &quot;\xB8&quot; =&gt; &quot;\xC2\xB8&quot;, &quot;\xB9&quot; =&gt; &quot;\xC2\xB9&quot;, &quot;\xBA&quot; =&gt; &quot;\xC2\xBA&quot;, &quot;\xBB&quot; =&gt; &quot;\xC2\xBB&quot;, &quot;\xBC&quot; =&gt; &quot;\xC2\xBC&quot;, &quot;\xBD&quot; =&gt; &quot;\xC2\xBD&quot;, &quot;\xBE&quot; =&gt; &quot;\xC2\xBE&quot;, &quot;\xBF&quot; =&gt; &quot;\xC2\xBF&quot;, &quot;\xC0&quot; =&gt; &quot;\xC3\x80&quot;, &quot;\xC1&quot; =&gt; &quot;\xC3\x81&quot;, &quot;\xC2&quot; =&gt; &quot;\xC3\x82&quot;, &quot;\xC3&quot; =&gt; &quot;\xC3\x83&quot;, &quot;\xC4&quot; =&gt; &quot;\xC3\x84&quot;, &quot;\xC5&quot; =&gt; &quot;\xC3\x85&quot;, &quot;\xC6&quot; =&gt; &quot;\xC3\x86&quot;, &quot;\xC7&quot; =&gt; &quot;\xC3\x87&quot;, &quot;\xC8&quot; =&gt; &quot;\xC3\x88&quot;, &quot;\xC9&quot; =&gt; &quot;\xC3\x89&quot;, &quot;\xCA&quot; =&gt; &quot;\xC3\x8A&quot;, &quot;\xCB&quot; =&gt; &quot;\xC3\x8B&quot;, &quot;\xCC&quot; =&gt; &quot;\xC3\x8C&quot;, &quot;\xCD&quot; =&gt; &quot;\xC3\x8D&quot;, &quot;\xCE&quot; =&gt; &quot;\xC3\x8E&quot;, &quot;\xCF&quot; =&gt; &quot;\xC3\x8F&quot;, &quot;\xD0&quot; =&gt; &quot;\xC3\x90&quot;, &quot;\xD1&quot; =&gt; &quot;\xC3\x91&quot;, &quot;\xD2&quot; =&gt; &quot;\xC3\x92&quot;, &quot;\xD3&quot; =&gt; &quot;\xC3\x93&quot;, &quot;\xD4&quot; =&gt; &quot;\xC3\x94&quot;, &quot;\xD5&quot; =&gt; &quot;\xC3\x95&quot;, &quot;\xD6&quot; =&gt; &quot;\xC3\x96&quot;, &quot;\xD7&quot; =&gt; &quot;\xC3\x97&quot;, &quot;\xD8&quot; =&gt; &quot;\xC3\x98&quot;, &quot;\xD9&quot; =&gt; &quot;\xC3\x99&quot;, &quot;\xDA&quot; =&gt; &quot;\xC3\x9A&quot;, &quot;\xDB&quot; =&gt; &quot;\xC3\x9B&quot;, &quot;\xDC&quot; =&gt; &quot;\xC3\x9C&quot;, &quot;\xDD&quot; =&gt; &quot;\xC3\x9D&quot;, &quot;\xDE&quot; =&gt; &quot;\xC3\x9E&quot;, &quot;\xDF&quot; =&gt; &quot;\xC3\x9F&quot;, &quot;\xE0&quot; =&gt; &quot;\xC3\xA0&quot;, &quot;\xE1&quot; =&gt; &quot;\xC3\xA1&quot;, &quot;\xE2&quot; =&gt; &quot;\xC3\xA2&quot;, &quot;\xE3&quot; =&gt; &quot;\xC3\xA3&quot;, &quot;\xE4&quot; =&gt; &quot;\xC3\xA4&quot;, &quot;\xE5&quot; =&gt; &quot;\xC3\xA5&quot;, &quot;\xE6&quot; =&gt; &quot;\xC3\xA6&quot;, &quot;\xE7&quot; =&gt; &quot;\xC3\xA7&quot;, &quot;\xE8&quot; =&gt; &quot;\xC3\xA8&quot;, &quot;\xE9&quot; =&gt; &quot;\xC3\xA9&quot;, &quot;\xEA&quot; =&gt; &quot;\xC3\xAA&quot;, &quot;\xEB&quot; =&gt; &quot;\xC3\xAB&quot;, &quot;\xEC&quot; =&gt; &quot;\xC3\xAC&quot;, &quot;\xED&quot; =&gt; &quot;\xC3\xAD&quot;, &quot;\xEE&quot; =&gt; &quot;\xC3\xAE&quot;, &quot;\xEF&quot; =&gt; &quot;\xC3\xAF&quot;, &quot;\xF0&quot; =&gt; &quot;\xC3\xB0&quot;, &quot;\xF1&quot; =&gt; &quot;\xC3\xB1&quot;, &quot;\xF2&quot; =&gt; &quot;\xC3\xB2&quot;, &quot;\xF3&quot; =&gt; &quot;\xC3\xB3&quot;, &quot;\xF4&quot; =&gt; &quot;\xC3\xB4&quot;, &quot;\xF5&quot; =&gt; &quot;\xC3\xB5&quot;, &quot;\xF6&quot; =&gt; &quot;\xC3\xB6&quot;, &quot;\xF7&quot; =&gt; &quot;\xC3\xB7&quot;, &quot;\xF8&quot; =&gt; &quot;\xC3\xB8&quot;, &quot;\xF9&quot; =&gt; &quot;\xC3\xB9&quot;, &quot;\xFA&quot; =&gt; &quot;\xC3\xBA&quot;, &quot;\xFB&quot; =&gt; &quot;\xC3\xBB&quot;, &quot;\xFC&quot; =&gt; &quot;\xC3\xBC&quot;, &quot;\xFD&quot; =&gt; &quot;\xC3\xBD&quot;, &quot;\xFE&quot; =&gt; &quot;\xC3\xBE&quot;, &quot;\xFF&quot; =&gt; &quot;\xC3\xBF&quot;);

		return strtr($string, $convert_table);
	}

	/**
	 * Change a string from one encoding to another
	 *
	 * @param string $data Raw data in $input encoding
	 * @param string $input Encoding of $data
	 * @param string $output Encoding you want
	 * @return string|boolean False if we can't convert it
	 */
	public static function change_encoding($data, $input, $output)
	{
		$input = SimplePie_Misc::encoding($input);
		$output = SimplePie_Misc::encoding($output);

		// We fail to fail on non US-ASCII bytes
		if ($input === 'US-ASCII')
		{
			static $non_ascii_octects = '';
			if (!$non_ascii_octects)
			{
				for ($i = 0x80; $i &lt;= 0xFF; $i++)
				{
					$non_ascii_octects .= chr($i);
				}
			}
			$data = substr($data, 0, strcspn($data, $non_ascii_octects));
		}

		// This is first, as behaviour of this is completely predictable
		if ($input === 'windows-1252' &amp;&amp; $output === 'UTF-8')
		{
			return SimplePie_Misc::windows_1252_to_utf8($data);
		}
		// This is second, as behaviour of this varies only with PHP version (the middle part of this expression checks the encoding is supported).
		elseif (function_exists('mb_convert_encoding') &amp;&amp; ($return = SimplePie_Misc::change_encoding_mbstring($data, $input, $output)))
		{
			return $return;
 		}
		// This is third, as behaviour of this varies with OS userland and PHP version
		elseif (function_exists('iconv') &amp;&amp; ($return = SimplePie_Misc::change_encoding_iconv($data, $input, $output)))
		{
			return $return;
		}
		// This is last, as behaviour of this varies with OS userland and PHP version
		elseif (class_exists('\UConverter') &amp;&amp; ($return = SimplePie_Misc::change_encoding_uconverter($data, $input, $output)))
		{
			return $return;
		}

		// If we can't do anything, just fail
		return false;
	}

	protected static function change_encoding_mbstring($data, $input, $output)
	{
		if ($input === 'windows-949')
		{
			$input = 'EUC-KR';
		}
		if ($output === 'windows-949')
		{
			$output = 'EUC-KR';
		}
		if ($input === 'Windows-31J')
		{
			$input = 'SJIS';
		}
		if ($output === 'Windows-31J')
		{
			$output = 'SJIS';
		}

		// Check that the encoding is supported
		if (!in_array($input, mb_list_encodings()))
		{
			return false;
		}

		if (@mb_convert_encoding(&quot;\x80&quot;, 'UTF-16BE', $input) === &quot;\x00\x80&quot;)
		{
			return false;
		}

		// Let's do some conversion
		if ($return = @mb_convert_encoding($data, $output, $input))
		{
			return $return;
		}

		return false;
	}

	protected static function change_encoding_iconv($data, $input, $output)
	{
		return @iconv($input, $output, $data);
	}

	/**
	 * @param string $data
	 * @param string $input
	 * @param string $output
	 * @return string|false
	 */
	protected static function change_encoding_uconverter($data, $input, $output)
	{
		return @\UConverter::transcode($data, $output, $input);
	}

	/**
	 * Normalize an encoding name
	 *
	 * This is automatically generated by create.php
	 *
	 * To generate it, run `php create.php` on the command line, and copy the
	 * output to replace this function.
	 *
	 * @param string $charset Character set to standardise
	 * @return string Standardised name
	 */
	public static function encoding($charset)
	{
		// Normalization from UTS #22
		switch (strtolower(preg_replace('/(?:[^a-zA-Z0-9]+|([^0-9])0+)/', '\1', $charset)))
		{
			case 'adobestandardencoding':
			case 'csadobestandardencoding':
				return 'Adobe-Standard-Encoding';

			case 'adobesymbolencoding':
			case 'cshppsmath':
				return 'Adobe-Symbol-Encoding';

			case 'ami1251':
			case 'amiga1251':
				return 'Amiga-1251';

			case 'ansix31101983':
			case 'csat5001983':
			case 'csiso99naplps':
			case 'isoir99':
			case 'naplps':
				return 'ANSI_X3.110-1983';

			case 'arabic7':
			case 'asmo449':
			case 'csiso89asmo449':
			case 'iso9036':
			case 'isoir89':
				return 'ASMO_449';

			case 'big5':
			case 'csbig5':
				return 'Big5';

			case 'big5hkscs':
				return 'Big5-HKSCS';

			case 'bocu1':
			case 'csbocu1':
				return 'BOCU-1';

			case 'brf':
			case 'csbrf':
				return 'BRF';

			case 'bs4730':
			case 'csiso4unitedkingdom':
			case 'gb':
			case 'iso646gb':
			case 'isoir4':
			case 'uk':
				return 'BS_4730';

			case 'bsviewdata':
			case 'csiso47bsviewdata':
			case 'isoir47':
				return 'BS_viewdata';

			case 'cesu8':
			case 'cscesu8':
				return 'CESU-8';

			case 'ca':
			case 'csa71':
			case 'csaz243419851':
			case 'csiso121canadian1':
			case 'iso646ca':
			case 'isoir121':
				return 'CSA_Z243.4-1985-1';

			case 'csa72':
			case 'csaz243419852':
			case 'csiso122canadian2':
			case 'iso646ca2':
			case 'isoir122':
				return 'CSA_Z243.4-1985-2';

			case 'csaz24341985gr':
			case 'csiso123csaz24341985gr':
			case 'isoir123':
				return 'CSA_Z243.4-1985-gr';

			case 'csiso139csn369103':
			case 'csn369103':
			case 'isoir139':
				return 'CSN_369103';

			case 'csdecmcs':
			case 'dec':
			case 'decmcs':
				return 'DEC-MCS';

			case 'csiso21german':
			case 'de':
			case 'din66003':
			case 'iso646de':
			case 'isoir21':
				return 'DIN_66003';

			case 'csdkus':
			case 'dkus':
				return 'dk-us';

			case 'csiso646danish':
			case 'dk':
			case 'ds2089':
			case 'iso646dk':
				return 'DS_2089';

			case 'csibmebcdicatde':
			case 'ebcdicatde':
				return 'EBCDIC-AT-DE';

			case 'csebcdicatdea':
			case 'ebcdicatdea':
				return 'EBCDIC-AT-DE-A';

			case 'csebcdiccafr':
			case 'ebcdiccafr':
				return 'EBCDIC-CA-FR';

			case 'csebcdicdkno':
			case 'ebcdicdkno':
				return 'EBCDIC-DK-NO';

			case 'csebcdicdknoa':
			case 'ebcdicdknoa':
				return 'EBCDIC-DK-NO-A';

			case 'csebcdices':
			case 'ebcdices':
				return 'EBCDIC-ES';

			case 'csebcdicesa':
			case 'ebcdicesa':
				return 'EBCDIC-ES-A';

			case 'csebcdicess':
			case 'ebcdicess':
				return 'EBCDIC-ES-S';

			case 'csebcdicfise':
			case 'ebcdicfise':
				return 'EBCDIC-FI-SE';

			case 'csebcdicfisea':
			case 'ebcdicfisea':
				return 'EBCDIC-FI-SE-A';

			case 'csebcdicfr':
			case 'ebcdicfr':
				return 'EBCDIC-FR';

			case 'csebcdicit':
			case 'ebcdicit':
				return 'EBCDIC-IT';

			case 'csebcdicpt':
			case 'ebcdicpt':
				return 'EBCDIC-PT';

			case 'csebcdicuk':
			case 'ebcdicuk':
				return 'EBCDIC-UK';

			case 'csebcdicus':
			case 'ebcdicus':
				return 'EBCDIC-US';

			case 'csiso111ecmacyrillic':
			case 'ecmacyrillic':
			case 'isoir111':
			case 'koi8e':
				return 'ECMA-cyrillic';

			case 'csiso17spanish':
			case 'es':
			case 'iso646es':
			case 'isoir17':
				return 'ES';

			case 'csiso85spanish2':
			case 'es2':
			case 'iso646es2':
			case 'isoir85':
				return 'ES2';

			case 'cseucpkdfmtjapanese':
			case 'eucjp':
			case 'extendedunixcodepackedformatforjapanese':
				return 'EUC-JP';

			case 'cseucfixwidjapanese':
			case 'extendedunixcodefixedwidthforjapanese':
				return 'Extended_UNIX_Code_Fixed_Width_for_Japanese';

			case 'gb18030':
				return 'GB18030';

			case 'chinese':
			case 'cp936':
			case 'csgb2312':
			case 'csiso58gb231280':
			case 'gb2312':
			case 'gb231280':
			case 'gbk':
			case 'isoir58':
			case 'ms936':
			case 'windows936':
				return 'GBK';

			case 'cn':
			case 'csiso57gb1988':
			case 'gb198880':
			case 'iso646cn':
			case 'isoir57':
				return 'GB_1988-80';

			case 'csiso153gost1976874':
			case 'gost1976874':
			case 'isoir153':
			case 'stsev35888':
				return 'GOST_19768-74';

			case 'csiso150':
			case 'csiso150greekccitt':
			case 'greekccitt':
			case 'isoir150':
				return 'greek-ccitt';

			case 'csiso88greek7':
			case 'greek7':
			case 'isoir88':
				return 'greek7';

			case 'csiso18greek7old':
			case 'greek7old':
			case 'isoir18':
				return 'greek7-old';

			case 'cshpdesktop':
			case 'hpdesktop':
				return 'HP-DeskTop';

			case 'cshplegal':
			case 'hplegal':
				return 'HP-Legal';

			case 'cshpmath8':
			case 'hpmath8':
				return 'HP-Math8';

			case 'cshppifont':
			case 'hppifont':
				return 'HP-Pi-font';

			case 'cshproman8':
			case 'hproman8':
			case 'r8':
			case 'roman8':
				return 'hp-roman8';

			case 'hzgb2312':
				return 'HZ-GB-2312';

			case 'csibmsymbols':
			case 'ibmsymbols':
				return 'IBM-Symbols';

			case 'csibmthai':
			case 'ibmthai':
				return 'IBM-Thai';

			case 'cp37':
			case 'csibm37':
			case 'ebcdiccpca':
			case 'ebcdiccpnl':
			case 'ebcdiccpus':
			case 'ebcdiccpwt':
			case 'ibm37':
				return 'IBM037';

			case 'cp38':
			case 'csibm38':
			case 'ebcdicint':
			case 'ibm38':
				return 'IBM038';

			case 'cp273':
			case 'csibm273':
			case 'ibm273':
				return 'IBM273';

			case 'cp274':
			case 'csibm274':
			case 'ebcdicbe':
			case 'ibm274':
				return 'IBM274';

			case 'cp275':
			case 'csibm275':
			case 'ebcdicbr':
			case 'ibm275':
				return 'IBM275';

			case 'csibm277':
			case 'ebcdiccpdk':
			case 'ebcdiccpno':
			case 'ibm277':
				return 'IBM277';

			case 'cp278':
			case 'csibm278':
			case 'ebcdiccpfi':
			case 'ebcdiccpse':
			case 'ibm278':
				return 'IBM278';

			case 'cp280':
			case 'csibm280':
			case 'ebcdiccpit':
			case 'ibm280':
				return 'IBM280';

			case 'cp281':
			case 'csibm281':
			case 'ebcdicjpe':
			case 'ibm281':
				return 'IBM281';

			case 'cp284':
			case 'csibm284':
			case 'ebcdiccpes':
			case 'ibm284':
				return 'IBM284';

			case 'cp285':
			case 'csibm285':
			case 'ebcdiccpgb':
			case 'ibm285':
				return 'IBM285';

			case 'cp290':
			case 'csibm290':
			case 'ebcdicjpkana':
			case 'ibm290':
				return 'IBM290';

			case 'cp297':
			case 'csibm297':
			case 'ebcdiccpfr':
			case 'ibm297':
				return 'IBM297';

			case 'cp420':
			case 'csibm420':
			case 'ebcdiccpar1':
			case 'ibm420':
				return 'IBM420';

			case 'cp423':
			case 'csibm423':
			case 'ebcdiccpgr':
			case 'ibm423':
				return 'IBM423';

			case 'cp424':
			case 'csibm424':
			case 'ebcdiccphe':
			case 'ibm424':
				return 'IBM424';

			case '437':
			case 'cp437':
			case 'cspc8codepage437':
			case 'ibm437':
				return 'IBM437';

			case 'cp500':
			case 'csibm500':
			case 'ebcdiccpbe':
			case 'ebcdiccpch':
			case 'ibm500':
				return 'IBM500';

			case 'cp775':
			case 'cspc775baltic':
			case 'ibm775':
				return 'IBM775';

			case '850':
			case 'cp850':
			case 'cspc850multilingual':
			case 'ibm850':
				return 'IBM850';

			case '851':
			case 'cp851':
			case 'csibm851':
			case 'ibm851':
				return 'IBM851';

			case '852':
			case 'cp852':
			case 'cspcp852':
			case 'ibm852':
				return 'IBM852';

			case '855':
			case 'cp855':
			case 'csibm855':
			case 'ibm855':
				return 'IBM855';

			case '857':
			case 'cp857':
			case 'csibm857':
			case 'ibm857':
				return 'IBM857';

			case 'ccsid858':
			case 'cp858':
			case 'ibm858':
			case 'pcmultilingual850euro':
				return 'IBM00858';

			case '860':
			case 'cp860':
			case 'csibm860':
			case 'ibm860':
				return 'IBM860';

			case '861':
			case 'cp861':
			case 'cpis':
			case 'csibm861':
			case 'ibm861':
				return 'IBM861';

			case '862':
			case 'cp862':
			case 'cspc862latinhebrew':
			case 'ibm862':
				return 'IBM862';

			case '863':
			case 'cp863':
			case 'csibm863':
			case 'ibm863':
				return 'IBM863';

			case 'cp864':
			case 'csibm864':
			case 'ibm864':
				return 'IBM864';

			case '865':
			case 'cp865':
			case 'csibm865':
			case 'ibm865':
				return 'IBM865';

			case '866':
			case 'cp866':
			case 'csibm866':
			case 'ibm866':
				return 'IBM866';

			case 'cp868':
			case 'cpar':
			case 'csibm868':
			case 'ibm868':
				return 'IBM868';

			case '869':
			case 'cp869':
			case 'cpgr':
			case 'csibm869':
			case 'ibm869':
				return 'IBM869';

			case 'cp870':
			case 'csibm870':
			case 'ebcdiccproece':
			case 'ebcdiccpyu':
			case 'ibm870':
				return 'IBM870';

			case 'cp871':
			case 'csibm871':
			case 'ebcdiccpis':
			case 'ibm871':
				return 'IBM871';

			case 'cp880':
			case 'csibm880':
			case 'ebcdiccyrillic':
			case 'ibm880':
				return 'IBM880';

			case 'cp891':
			case 'csibm891':
			case 'ibm891':
				return 'IBM891';

			case 'cp903':
			case 'csibm903':
			case 'ibm903':
				return 'IBM903';

			case '904':
			case 'cp904':
			case 'csibbm904':
			case 'ibm904':
				return 'IBM904';

			case 'cp905':
			case 'csibm905':
			case 'ebcdiccptr':
			case 'ibm905':
				return 'IBM905';

			case 'cp918':
			case 'csibm918':
			case 'ebcdiccpar2':
			case 'ibm918':
				return 'IBM918';

			case 'ccsid924':
			case 'cp924':
			case 'ebcdiclatin9euro':
			case 'ibm924':
				return 'IBM00924';

			case 'cp1026':
			case 'csibm1026':
			case 'ibm1026':
				return 'IBM1026';

			case 'ibm1047':
				return 'IBM1047';

			case 'ccsid1140':
			case 'cp1140':
			case 'ebcdicus37euro':
			case 'ibm1140':
				return 'IBM01140';

			case 'ccsid1141':
			case 'cp1141':
			case 'ebcdicde273euro':
			case 'ibm1141':
				return 'IBM01141';

			case 'ccsid1142':
			case 'cp1142':
			case 'ebcdicdk277euro':
			case 'ebcdicno277euro':
			case 'ibm1142':
				return 'IBM01142';

			case 'ccsid1143':
			case 'cp1143':
			case 'ebcdicfi278euro':
			case 'ebcdicse278euro':
			case 'ibm1143':
				return 'IBM01143';

			case 'ccsid1144':
			case 'cp1144':
			case 'ebcdicit280euro':
			case 'ibm1144':
				return 'IBM01144';

			case 'ccsid1145':
			case 'cp1145':
			case 'ebcdices284euro':
			case 'ibm1145':
				return 'IBM01145';

			case 'ccsid1146':
			case 'cp1146':
			case 'ebcdicgb285euro':
			case 'ibm1146':
				return 'IBM01146';

			case 'ccsid1147':
			case 'cp1147':
			case 'ebcdicfr297euro':
			case 'ibm1147':
				return 'IBM01147';

			case 'ccsid1148':
			case 'cp1148':
			case 'ebcdicinternational500euro':
			case 'ibm1148':
				return 'IBM01148';

			case 'ccsid1149':
			case 'cp1149':
			case 'ebcdicis871euro':
			case 'ibm1149':
				return 'IBM01149';

			case 'csiso143iecp271':
			case 'iecp271':
			case 'isoir143':
				return 'IEC_P27-1';

			case 'csiso49inis':
			case 'inis':
			case 'isoir49':
				return 'INIS';

			case 'csiso50inis8':
			case 'inis8':
			case 'isoir50':
				return 'INIS-8';

			case 'csiso51iniscyrillic':
			case 'iniscyrillic':
			case 'isoir51':
				return 'INIS-cyrillic';

			case 'csinvariant':
			case 'invariant':
				return 'INVARIANT';

			case 'iso2022cn':
				return 'ISO-2022-CN';

			case 'iso2022cnext':
				return 'ISO-2022-CN-EXT';

			case 'csiso2022jp':
			case 'iso2022jp':
				return 'ISO-2022-JP';

			case 'csiso2022jp2':
			case 'iso2022jp2':
				return 'ISO-2022-JP-2';

			case 'csiso2022kr':
			case 'iso2022kr':
				return 'ISO-2022-KR';

			case 'cswindows30latin1':
			case 'iso88591windows30latin1':
				return 'ISO-8859-1-Windows-3.0-Latin-1';

			case 'cswindows31latin1':
			case 'iso88591windows31latin1':
				return 'ISO-8859-1-Windows-3.1-Latin-1';

			case 'csisolatin2':
			case 'iso88592':
			case 'iso885921987':
			case 'isoir101':
			case 'l2':
			case 'latin2':
				return 'ISO-8859-2';

			case 'cswindows31latin2':
			case 'iso88592windowslatin2':
				return 'ISO-8859-2-Windows-Latin-2';

			case 'csisolatin3':
			case 'iso88593':
			case 'iso885931988':
			case 'isoir109':
			case 'l3':
			case 'latin3':
				return 'ISO-8859-3';

			case 'csisolatin4':
			case 'iso88594':
			case 'iso885941988':
			case 'isoir110':
			case 'l4':
			case 'latin4':
				return 'ISO-8859-4';

			case 'csisolatincyrillic':
			case 'cyrillic':
			case 'iso88595':
			case 'iso885951988':
			case 'isoir144':
				return 'ISO-8859-5';

			case 'arabic':
			case 'asmo708':
			case 'csisolatinarabic':
			case 'ecma114':
			case 'iso88596':
			case 'iso885961987':
			case 'isoir127':
				return 'ISO-8859-6';

			case 'csiso88596e':
			case 'iso88596e':
				return 'ISO-8859-6-E';

			case 'csiso88596i':
			case 'iso88596i':
				return 'ISO-8859-6-I';

			case 'csisolatingreek':
			case 'ecma118':
			case 'elot928':
			case 'greek':
			case 'greek8':
			case 'iso88597':
			case 'iso885971987':
			case 'isoir126':
				return 'ISO-8859-7';

			case 'csisolatinhebrew':
			case 'hebrew':
			case 'iso88598':
			case 'iso885981988':
			case 'isoir138':
				return 'ISO-8859-8';

			case 'csiso88598e':
			case 'iso88598e':
				return 'ISO-8859-8-E';

			case 'csiso88598i':
			case 'iso88598i':
				return 'ISO-8859-8-I';

			case 'cswindows31latin5':
			case 'iso88599windowslatin5':
				return 'ISO-8859-9-Windows-Latin-5';

			case 'csisolatin6':
			case 'iso885910':
			case 'iso8859101992':
			case 'isoir157':
			case 'l6':
			case 'latin6':
				return 'ISO-8859-10';

			case 'iso885913':
				return 'ISO-8859-13';

			case 'iso885914':
			case 'iso8859141998':
			case 'isoceltic':
			case 'isoir199':
			case 'l8':
			case 'latin8':
				return 'ISO-8859-14';

			case 'iso885915':
			case 'latin9':
				return 'ISO-8859-15';

			case 'iso885916':
			case 'iso8859162001':
			case 'isoir226':
			case 'l10':
			case 'latin10':
				return 'ISO-8859-16';

			case 'iso10646j1':
				return 'ISO-10646-J-1';

			case 'csunicode':
			case 'iso10646ucs2':
				return 'ISO-10646-UCS-2';

			case 'csucs4':
			case 'iso10646ucs4':
				return 'ISO-10646-UCS-4';

			case 'csunicodeascii':
			case 'iso10646ucsbasic':
				return 'ISO-10646-UCS-Basic';

			case 'csunicodelatin1':
			case 'iso10646':
			case 'iso10646unicodelatin1':
				return 'ISO-10646-Unicode-Latin1';

			case 'csiso10646utf1':
			case 'iso10646utf1':
				return 'ISO-10646-UTF-1';

			case 'csiso115481':
			case 'iso115481':
			case 'isotr115481':
				return 'ISO-11548-1';

			case 'csiso90':
			case 'isoir90':
				return 'iso-ir-90';

			case 'csunicodeibm1261':
			case 'isounicodeibm1261':
				return 'ISO-Unicode-IBM-1261';

			case 'csunicodeibm1264':
			case 'isounicodeibm1264':
				return 'ISO-Unicode-IBM-1264';

			case 'csunicodeibm1265':
			case 'isounicodeibm1265':
				return 'ISO-Unicode-IBM-1265';

			case 'csunicodeibm1268':
			case 'isounicodeibm1268':
				return 'ISO-Unicode-IBM-1268';

			case 'csunicodeibm1276':
			case 'isounicodeibm1276':
				return 'ISO-Unicode-IBM-1276';

			case 'csiso646basic1983':
			case 'iso646basic1983':
			case 'ref':
				return 'ISO_646.basic:1983';

			case 'csiso2intlrefversion':
			case 'irv':
			case 'iso646irv1983':
			case 'isoir2':
				return 'ISO_646.irv:1983';

			case 'csiso2033':
			case 'e13b':
			case 'iso20331983':
			case 'isoir98':
				return 'ISO_2033-1983';

			case 'csiso5427cyrillic':
			case 'iso5427':
			case 'isoir37':
				return 'ISO_5427';

			case 'iso5427cyrillic1981':
			case 'iso54271981':
			case 'isoir54':
				return 'ISO_5427:1981';

			case 'csiso5428greek':
			case 'iso54281980':
			case 'isoir55':
				return 'ISO_5428:1980';

			case 'csiso6937add':
			case 'iso6937225':
			case 'isoir152':
				return 'ISO_6937-2-25';

			case 'csisotextcomm':
			case 'iso69372add':
			case 'isoir142':
				return 'ISO_6937-2-add';

			case 'csiso8859supp':
			case 'iso8859supp':
			case 'isoir154':
			case 'latin125':
				return 'ISO_8859-supp';

			case 'csiso10367box':
			case 'iso10367box':
			case 'isoir155':
				return 'ISO_10367-box';

			case 'csiso15italian':
			case 'iso646it':
			case 'isoir15':
			case 'it':
				return 'IT';

			case 'csiso13jisc6220jp':
			case 'isoir13':
			case 'jisc62201969':
			case 'jisc62201969jp':
			case 'katakana':
			case 'x2017':
				return 'JIS_C6220-1969-jp';

			case 'csiso14jisc6220ro':
			case 'iso646jp':
			case 'isoir14':
			case 'jisc62201969ro':
			case 'jp':
				return 'JIS_C6220-1969-ro';

			case 'csiso42jisc62261978':
			case 'isoir42':
			case 'jisc62261978':
				return 'JIS_C6226-1978';

			case 'csiso87jisx208':
			case 'isoir87':
			case 'jisc62261983':
			case 'jisx2081983':
			case 'x208':
				return 'JIS_C6226-1983';

			case 'csiso91jisc62291984a':
			case 'isoir91':
			case 'jisc62291984a':
			case 'jpocra':
				return 'JIS_C6229-1984-a';

			case 'csiso92jisc62991984b':
			case 'iso646jpocrb':
			case 'isoir92':
			case 'jisc62291984b':
			case 'jpocrb':
				return 'JIS_C6229-1984-b';

			case 'csiso93jis62291984badd':
			case 'isoir93':
			case 'jisc62291984badd':
			case 'jpocrbadd':
				return 'JIS_C6229-1984-b-add';

			case 'csiso94jis62291984hand':
			case 'isoir94':
			case 'jisc62291984hand':
			case 'jpocrhand':
				return 'JIS_C6229-1984-hand';

			case 'csiso95jis62291984handadd':
			case 'isoir95':
			case 'jisc62291984handadd':
			case 'jpocrhandadd':
				return 'JIS_C6229-1984-hand-add';

			case 'csiso96jisc62291984kana':
			case 'isoir96':
			case 'jisc62291984kana':
				return 'JIS_C6229-1984-kana';

			case 'csjisencoding':
			case 'jisencoding':
				return 'JIS_Encoding';

			case 'cshalfwidthkatakana':
			case 'jisx201':
			case 'x201':
				return 'JIS_X0201';

			case 'csiso159jisx2121990':
			case 'isoir159':
			case 'jisx2121990':
			case 'x212':
				return 'JIS_X0212-1990';

			case 'csiso141jusib1002':
			case 'iso646yu':
			case 'isoir141':
			case 'js':
			case 'jusib1002':
			case 'yu':
				return 'JUS_I.B1.002';

			case 'csiso147macedonian':
			case 'isoir147':
			case 'jusib1003mac':
			case 'macedonian':
				return 'JUS_I.B1.003-mac';

			case 'csiso146serbian':
			case 'isoir146':
			case 'jusib1003serb':
			case 'serbian':
				return 'JUS_I.B1.003-serb';

			case 'koi7switched':
				return 'KOI7-switched';

			case 'cskoi8r':
			case 'koi8r':
				return 'KOI8-R';

			case 'koi8u':
				return 'KOI8-U';

			case 'csksc5636':
			case 'iso646kr':
			case 'ksc5636':
				return 'KSC5636';

			case 'cskz1048':
			case 'kz1048':
			case 'rk1048':
			case 'strk10482002':
				return 'KZ-1048';

			case 'csiso19latingreek':
			case 'isoir19':
			case 'latingreek':
				return 'latin-greek';

			case 'csiso27latingreek1':
			case 'isoir27':
			case 'latingreek1':
				return 'Latin-greek-1';

			case 'csiso158lap':
			case 'isoir158':
			case 'lap':
			case 'latinlap':
				return 'latin-lap';

			case 'csmacintosh':
			case 'mac':
			case 'macintosh':
				return 'macintosh';

			case 'csmicrosoftpublishing':
			case 'microsoftpublishing':
				return 'Microsoft-Publishing';

			case 'csmnem':
			case 'mnem':
				return 'MNEM';

			case 'csmnemonic':
			case 'mnemonic':
				return 'MNEMONIC';

			case 'csiso86hungarian':
			case 'hu':
			case 'iso646hu':
			case 'isoir86':
			case 'msz77953':
				return 'MSZ_7795.3';

			case 'csnatsdano':
			case 'isoir91':
			case 'natsdano':
				return 'NATS-DANO';

			case 'csnatsdanoadd':
			case 'isoir92':
			case 'natsdanoadd':
				return 'NATS-DANO-ADD';

			case 'csnatssefi':
			case 'isoir81':
			case 'natssefi':
				return 'NATS-SEFI';

			case 'csnatssefiadd':
			case 'isoir82':
			case 'natssefiadd':
				return 'NATS-SEFI-ADD';

			case 'csiso151cuba':
			case 'cuba':
			case 'iso646cu':
			case 'isoir151':
			case 'ncnc1081':
				return 'NC_NC00-10:81';

			case 'csiso69french':
			case 'fr':
			case 'iso646fr':
			case 'isoir69':
			case 'nfz62010':
				return 'NF_Z_62-010';

			case 'csiso25french':
			case 'iso646fr1':
			case 'isoir25':
			case 'nfz620101973':
				return 'NF_Z_62-010_(1973)';

			case 'csiso60danishnorwegian':
			case 'csiso60norwegian1':
			case 'iso646no':
			case 'isoir60':
			case 'no':
			case 'ns45511':
				return 'NS_4551-1';

			case 'csiso61norwegian2':
			case 'iso646no2':
			case 'isoir61':
			case 'no2':
			case 'ns45512':
				return 'NS_4551-2';

			case 'osdebcdicdf3irv':
				return 'OSD_EBCDIC_DF03_IRV';

			case 'osdebcdicdf41':
				return 'OSD_EBCDIC_DF04_1';

			case 'osdebcdicdf415':
				return 'OSD_EBCDIC_DF04_15';

			case 'cspc8danishnorwegian':
			case 'pc8danishnorwegian':
				return 'PC8-Danish-Norwegian';

			case 'cspc8turkish':
			case 'pc8turkish':
				return 'PC8-Turkish';

			case 'csiso16portuguese':
			case 'iso646pt':
			case 'isoir16':
			case 'pt':
				return 'PT';

			case 'csiso84portuguese2':
			case 'iso646pt2':
			case 'isoir84':
			case 'pt2':
				return 'PT2';

			case 'cp154':
			case 'csptcp154':
			case 'cyrillicasian':
			case 'pt154':
			case 'ptcp154':
				return 'PTCP154';

			case 'scsu':
				return 'SCSU';

			case 'csiso10swedish':
			case 'fi':
			case 'iso646fi':
			case 'iso646se':
			case 'isoir10':
			case 'se':
			case 'sen850200b':
				return 'SEN_850200_B';

			case 'csiso11swedishfornames':
			case 'iso646se2':
			case 'isoir11':
			case 'se2':
			case 'sen850200c':
				return 'SEN_850200_C';

			case 'csiso102t617bit':
			case 'isoir102':
			case 't617bit':
				return 'T.61-7bit';

			case 'csiso103t618bit':
			case 'isoir103':
			case 't61':
			case 't618bit':
				return 'T.61-8bit';

			case 'csiso128t101g2':
			case 'isoir128':
			case 't101g2':
				return 'T.101-G2';

			case 'cstscii':
			case 'tscii':
				return 'TSCII';

			case 'csunicode11':
			case 'unicode11':
				return 'UNICODE-1-1';

			case 'csunicode11utf7':
			case 'unicode11utf7':
				return 'UNICODE-1-1-UTF-7';

			case 'csunknown8bit':
			case 'unknown8bit':
				return 'UNKNOWN-8BIT';

			case 'ansix341968':
			case 'ansix341986':
			case 'ascii':
			case 'cp367':
			case 'csascii':
			case 'ibm367':
			case 'iso646irv1991':
			case 'iso646us':
			case 'isoir6':
			case 'us':
			case 'usascii':
				return 'US-ASCII';

			case 'csusdk':
			case 'usdk':
				return 'us-dk';

			case 'utf7':
				return 'UTF-7';

			case 'utf8':
				return 'UTF-8';

			case 'utf16':
				return 'UTF-16';

			case 'utf16be':
				return 'UTF-16BE';

			case 'utf16le':
				return 'UTF-16LE';

			case 'utf32':
				return 'UTF-32';

			case 'utf32be':
				return 'UTF-32BE';

			case 'utf32le':
				return 'UTF-32LE';

			case 'csventurainternational':
			case 'venturainternational':
				return 'Ventura-International';

			case 'csventuramath':
			case 'venturamath':
				return 'Ventura-Math';

			case 'csventuraus':
			case 'venturaus':
				return 'Ventura-US';

			case 'csiso70videotexsupp1':
			case 'isoir70':
			case 'videotexsuppl':
				return 'videotex-suppl';

			case 'csviqr':
			case 'viqr':
				return 'VIQR';

			case 'csviscii':
			case 'viscii':
				return 'VISCII';

			case 'csshiftjis':
			case 'cswindows31j':
			case 'mskanji':
			case 'shiftjis':
			case 'windows31j':
				return 'Windows-31J';

			case 'iso885911':
			case 'tis620':
				return 'windows-874';

			case 'cseuckr':
			case 'csksc56011987':
			case 'euckr':
			case 'isoir149':
			case 'korean':
			case 'ksc5601':
			case 'ksc56011987':
			case 'ksc56011989':
			case 'windows949':
				return 'windows-949';

			case 'windows1250':
				return 'windows-1250';

			case 'windows1251':
				return 'windows-1251';

			case 'cp819':
			case 'csisolatin1':
			case 'ibm819':
			case 'iso88591':
			case 'iso885911987':
			case 'isoir100':
			case 'l1':
			case 'latin1':
			case 'windows1252':
				return 'windows-1252';

			case 'windows1253':
				return 'windows-1253';

			case 'csisolatin5':
			case 'iso88599':
			case 'iso885991989':
			case 'isoir148':
			case 'l5':
			case 'latin5':
			case 'windows1254':
				return 'windows-1254';

			case 'windows1255':
				return 'windows-1255';

			case 'windows1256':
				return 'windows-1256';

			case 'windows1257':
				return 'windows-1257';

			case 'windows1258':
				return 'windows-1258';

			default:
				return $charset;
		}
	}

	public static function get_curl_version()
	{
		if (is_array($curl = curl_version()))
		{
			$curl = $curl['version'];
		}
		elseif (substr($curl, 0, 5) === 'curl/')
		{
			$curl = substr($curl, 5, strcspn($curl, &quot;\x09\x0A\x0B\x0C\x0D&quot;, 5));
		}
		elseif (substr($curl, 0, 8) === 'libcurl/')
		{
			$curl = substr($curl, 8, strcspn($curl, &quot;\x09\x0A\x0B\x0C\x0D&quot;, 8));
		}
		else
		{
			$curl = 0;
		}
		return $curl;
	}

	/**
	 * Strip HTML comments
	 *
	 * @param string $data Data to strip comments from
	 * @return string Comment stripped string
	 */
	public static function strip_comments($data)
	{
		$output = '';
		while (($start = strpos($data, '&lt;!--')) !== false)
		{
			$output .= substr($data, 0, $start);
			if (($end = strpos($data, '--&gt;', $start)) !== false)
			{
				$data = substr_replace($data, '', 0, $end + 3);
			}
			else
			{
				$data = '';
			}
		}
		return $output . $data;
	}

	public static function parse_date($dt)
	{
		$parser = SimplePie_Parse_Date::get();
		return $parser-&gt;parse($dt);
	}

	/**
	 * Decode HTML entities
	 *
	 * @deprecated Use DOMDocument instead
	 * @param string $data Input data
	 * @return string Output data
	 */
	public static function entities_decode($data)
	{
		$decoder = new SimplePie_Decode_HTML_Entities($data);
		return $decoder-&gt;parse();
	}

	/**
	 * Remove RFC822 comments
	 *
	 * @param string $data Data to strip comments from
	 * @return string Comment stripped string
	 */
	public static function uncomment_rfc822($string)
	{
		$string = (string) $string;
		$position = 0;
		$length = strlen($string);
		$depth = 0;

		$output = '';

		while ($position &lt; $length &amp;&amp; ($pos = strpos($string, '(', $position)) !== false)
		{
			$output .= substr($string, $position, $pos - $position);
			$position = $pos + 1;
			if ($string[$pos - 1] !== '\\')
			{
				$depth++;
				while ($depth &amp;&amp; $position &lt; $length)
				{
					$position += strcspn($string, '()', $position);
					if ($string[$position - 1] === '\\')
					{
						$position++;
						continue;
					}
					elseif (isset($string[$position]))
					{
						switch ($string[$position])
						{
							case '(':
								$depth++;
								break;

							case ')':
								$depth--;
								break;
						}
						$position++;
					}
					else
					{
						break;
					}
				}
			}
			else
			{
				$output .= '(';
			}
		}
		$output .= substr($string, $position);

		return $output;
	}

	public static function parse_mime($mime)
	{
		if (($pos = strpos($mime, ';')) === false)
		{
			return trim($mime);
		}

		return trim(substr($mime, 0, $pos));
	}

	public static function atom_03_construct_type($attribs)
	{
		if (isset($attribs['']['mode']) &amp;&amp; strtolower(trim($attribs['']['mode']) === 'base64'))
		{
			$mode = SIMPLEPIE_CONSTRUCT_BASE64;
		}
		else
		{
			$mode = SIMPLEPIE_CONSTRUCT_NONE;
		}
		if (isset($attribs['']['type']))
		{
			switch (strtolower(trim($attribs['']['type'])))
			{
				case 'text':
				case 'text/plain':
					return SIMPLEPIE_CONSTRUCT_TEXT | $mode;

				case 'html':
				case 'text/html':
					return SIMPLEPIE_CONSTRUCT_HTML | $mode;

				case 'xhtml':
				case 'application/xhtml+xml':
					return SIMPLEPIE_CONSTRUCT_XHTML | $mode;

				default:
					return SIMPLEPIE_CONSTRUCT_NONE | $mode;
			}
		}

		return SIMPLEPIE_CONSTRUCT_TEXT | $mode;
	}

	public static function atom_10_construct_type($attribs)
	{
		if (isset($attribs['']['type']))
		{
			switch (strtolower(trim($attribs['']['type'])))
			{
				case 'text':
					return SIMPLEPIE_CONSTRUCT_TEXT;

				case 'html':
					return SIMPLEPIE_CONSTRUCT_HTML;

				case 'xhtml':
					return SIMPLEPIE_CONSTRUCT_XHTML;

				default:
					return SIMPLEPIE_CONSTRUCT_NONE;
			}
		}
		return SIMPLEPIE_CONSTRUCT_TEXT;
	}

	public static function atom_10_content_construct_type($attribs)
	{
		if (isset($attribs['']['type']))
		{
			$type = strtolower(trim($attribs['']['type']));
			switch ($type)
			{
				case 'text':
					return SIMPLEPIE_CONSTRUCT_TEXT;

				case 'html':
					return SIMPLEPIE_CONSTRUCT_HTML;

				case 'xhtml':
					return SIMPLEPIE_CONSTRUCT_XHTML;
			}
			if (in_array(substr($type, -4), array('+xml', '/xml')) || substr($type, 0, 5) === 'text/')
			{
				return SIMPLEPIE_CONSTRUCT_NONE;
			}
			else
			{
				return SIMPLEPIE_CONSTRUCT_BASE64;
			}
		}

		return SIMPLEPIE_CONSTRUCT_TEXT;
	}

	public static function is_isegment_nz_nc($string)
	{
		return (bool) preg_match('/^([A-Za-z0-9\-._~\x{A0}-\x{D7FF}\x{F900}-\x{FDCF}\x{FDF0}-\x{FFEF}\x{10000}-\x{1FFFD}\x{20000}-\x{2FFFD}\x{30000}-\x{3FFFD}\x{40000}-\x{4FFFD}\x{50000}-\x{5FFFD}\x{60000}-\x{6FFFD}\x{70000}-\x{7FFFD}\x{80000}-\x{8FFFD}\x{90000}-\x{9FFFD}\x{A0000}-\x{AFFFD}\x{B0000}-\x{BFFFD}\x{C0000}-\x{CFFFD}\x{D0000}-\x{DFFFD}\x{E1000}-\x{EFFFD}!$&amp;\'()*+,;=@]|(%[0-9ABCDEF]{2}))+$/u', $string);
	}

	public static function space_separated_tokens($string)
	{
		$space_characters = &quot;\x20\x09\x0A\x0B\x0C\x0D&quot;;
		$string_length = strlen($string);

		$position = strspn($string, $space_characters);
		$tokens = array();

		while ($position &lt; $string_length)
		{
			$len = strcspn($string, $space_characters, $position);
			$tokens[] = substr($string, $position, $len);
			$position += $len;
			$position += strspn($string, $space_characters, $position);
		}

		return $tokens;
	}

	/**
	 * Converts a unicode codepoint to a UTF-8 character
	 *
	 * @static
	 * @param int $codepoint Unicode codepoint
	 * @return string UTF-8 character
	 */
	public static function codepoint_to_utf8($codepoint)
	{
		$codepoint = (int) $codepoint;
		if ($codepoint &lt; 0)
		{
			return false;
		}
		else if ($codepoint &lt;= 0x7f)
		{
			return chr($codepoint);
		}
		else if ($codepoint &lt;= 0x7ff)
		{
			return chr(0xc0 | ($codepoint &gt;&gt; 6)) . chr(0x80 | ($codepoint &amp; 0x3f));
		}
		else if ($codepoint &lt;= 0xffff)
		{
			return chr(0xe0 | ($codepoint &gt;&gt; 12)) . chr(0x80 | (($codepoint &gt;&gt; 6) &amp; 0x3f)) . chr(0x80 | ($codepoint &amp; 0x3f));
		}
		else if ($codepoint &lt;= 0x10ffff)
		{
			return chr(0xf0 | ($codepoint &gt;&gt; 18)) . chr(0x80 | (($codepoint &gt;&gt; 12) &amp; 0x3f)) . chr(0x80 | (($codepoint &gt;&gt; 6) &amp; 0x3f)) . chr(0x80 | ($codepoint &amp; 0x3f));
		}

		// U+FFFD REPLACEMENT CHARACTER
		return &quot;\xEF\xBF\xBD&quot;;
	}

	/**
	 * Similar to parse_str()
	 *
	 * Returns an associative array of name/value pairs, where the value is an
	 * array of values that have used the same name
	 *
	 * @static
	 * @param string $str The input string.
	 * @return array
	 */
	public static function parse_str($str)
	{
		$return = array();
		$str = explode('&amp;', $str);

		foreach ($str as $section)
		{
			if (strpos($section, '=') !== false)
			{
				list($name, $value) = explode('=', $section, 2);
				$return[urldecode($name)][] = urldecode($value);
			}
			else
			{
				$return[urldecode($section)][] = null;
			}
		}

		return $return;
	}

	/**
	 * Detect XML encoding, as per XML 1.0 Appendix F.1
	 *
	 * @todo Add support for EBCDIC
	 * @param string $data XML data
	 * @param SimplePie_Registry $registry Class registry
	 * @return array Possible encodings
	 */
	public static function xml_encoding($data, $registry)
	{
		// UTF-32 Big Endian BOM
		if (substr($data, 0, 4) === &quot;\x00\x00\xFE\xFF&quot;)
		{
			$encoding[] = 'UTF-32BE';
		}
		// UTF-32 Little Endian BOM
		elseif (substr($data, 0, 4) === &quot;\xFF\xFE\x00\x00&quot;)
		{
			$encoding[] = 'UTF-32LE';
		}
		// UTF-16 Big Endian BOM
		elseif (substr($data, 0, 2) === &quot;\xFE\xFF&quot;)
		{
			$encoding[] = 'UTF-16BE';
		}
		// UTF-16 Little Endian BOM
		elseif (substr($data, 0, 2) === &quot;\xFF\xFE&quot;)
		{
			$encoding[] = 'UTF-16LE';
		}
		// UTF-8 BOM
		elseif (substr($data, 0, 3) === &quot;\xEF\xBB\xBF&quot;)
		{
			$encoding[] = 'UTF-8';
		}
		// UTF-32 Big Endian Without BOM
		elseif (substr($data, 0, 20) === &quot;\x00\x00\x00\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C&quot;)
		{
			if ($pos = strpos($data, &quot;\x00\x00\x00\x3F\x00\x00\x00\x3E&quot;))
			{
				$parser = $registry-&gt;create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32BE', 'UTF-8')));
				if ($parser-&gt;parse())
				{
					$encoding[] = $parser-&gt;encoding;
				}
			}
			$encoding[] = 'UTF-32BE';
		}
		// UTF-32 Little Endian Without BOM
		elseif (substr($data, 0, 20) === &quot;\x3C\x00\x00\x00\x3F\x00\x00\x00\x78\x00\x00\x00\x6D\x00\x00\x00\x6C\x00\x00\x00&quot;)
		{
			if ($pos = strpos($data, &quot;\x3F\x00\x00\x00\x3E\x00\x00\x00&quot;))
			{
				$parser = $registry-&gt;create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 20), 'UTF-32LE', 'UTF-8')));
				if ($parser-&gt;parse())
				{
					$encoding[] = $parser-&gt;encoding;
				}
			}
			$encoding[] = 'UTF-32LE';
		}
		// UTF-16 Big Endian Without BOM
		elseif (substr($data, 0, 10) === &quot;\x00\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C&quot;)
		{
			if ($pos = strpos($data, &quot;\x00\x3F\x00\x3E&quot;))
			{
				$parser = $registry-&gt;create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16BE', 'UTF-8')));
				if ($parser-&gt;parse())
				{
					$encoding[] = $parser-&gt;encoding;
				}
			}
			$encoding[] = 'UTF-16BE';
		}
		// UTF-16 Little Endian Without BOM
		elseif (substr($data, 0, 10) === &quot;\x3C\x00\x3F\x00\x78\x00\x6D\x00\x6C\x00&quot;)
		{
			if ($pos = strpos($data, &quot;\x3F\x00\x3E\x00&quot;))
			{
				$parser = $registry-&gt;create('XML_Declaration_Parser', array(SimplePie_Misc::change_encoding(substr($data, 20, $pos - 10), 'UTF-16LE', 'UTF-8')));
				if ($parser-&gt;parse())
				{
					$encoding[] = $parser-&gt;encoding;
				}
			}
			$encoding[] = 'UTF-16LE';
		}
		// US-ASCII (or superset)
		elseif (substr($data, 0, 5) === &quot;\x3C\x3F\x78\x6D\x6C&quot;)
		{
			if ($pos = strpos($data, &quot;\x3F\x3E&quot;))
			{
				$parser = $registry-&gt;create('XML_Declaration_Parser', array(substr($data, 5, $pos - 5)));
				if ($parser-&gt;parse())
				{
					$encoding[] = $parser-&gt;encoding;
				}
			}
			$encoding[] = 'UTF-8';
		}
		// Fallback to UTF-8
		else
		{
			$encoding[] = 'UTF-8';
		}
		return $encoding;
	}

	public static function output_javascript()
	{
		if (function_exists('ob_gzhandler'))
		{
			ob_start('ob_gzhandler');
		}
		header('Content-type: text/javascript; charset: UTF-8');
		header('Cache-Control: must-revalidate');
		header('Expires: ' . gmdate('D, d M Y H:i:s', time() + 604800) . ' GMT'); // 7 days
		?&gt;
function embed_quicktime(type, bgcolor, width, height, link, placeholder, loop) {
	if (placeholder != '') {
		document.writeln('&lt;embed type=&quot;'+type+'&quot; style=&quot;cursor:hand; cursor:pointer;&quot; href=&quot;'+link+'&quot; src=&quot;'+placeholder+'&quot; width=&quot;'+width+'&quot; height=&quot;'+height+'&quot; autoplay=&quot;false&quot; target=&quot;myself&quot; controller=&quot;false&quot; loop=&quot;'+loop+'&quot; scale=&quot;aspect&quot; bgcolor=&quot;'+bgcolor+'&quot; pluginspage=&quot;http://www.apple.com/quicktime/download/&quot;&gt;&lt;/embed&gt;');
	}
	else {
		document.writeln('&lt;embed type=&quot;'+type+'&quot; style=&quot;cursor:hand; cursor:pointer;&quot; src=&quot;'+link+'&quot; width=&quot;'+width+'&quot; height=&quot;'+height+'&quot; autoplay=&quot;false&quot; target=&quot;myself&quot; controller=&quot;true&quot; loop=&quot;'+loop+'&quot; scale=&quot;aspect&quot; bgcolor=&quot;'+bgcolor+'&quot; pluginspage=&quot;http://www.apple.com/quicktime/download/&quot;&gt;&lt;/embed&gt;');
	}
}

function embed_flash(bgcolor, width, height, link, loop, type) {
	document.writeln('&lt;embed src=&quot;'+link+'&quot; pluginspage=&quot;http://www.macromedia.com/go/getflashplayer&quot; type=&quot;'+type+'&quot; quality=&quot;high&quot; width=&quot;'+width+'&quot; height=&quot;'+height+'&quot; bgcolor=&quot;'+bgcolor+'&quot; loop=&quot;'+loop+'&quot;&gt;&lt;/embed&gt;');
}

function embed_flv(width, height, link, placeholder, loop, player) {
	document.writeln('&lt;embed src=&quot;'+player+'&quot; pluginspage=&quot;http://www.macromedia.com/go/getflashplayer&quot; type=&quot;application/x-shockwave-flash&quot; quality=&quot;high&quot; width=&quot;'+width+'&quot; height=&quot;'+height+'&quot; wmode=&quot;transparent&quot; flashvars=&quot;file='+link+'&amp;autostart=false&amp;repeat='+loop+'&amp;showdigits=true&amp;showfsbutton=false&quot;&gt;&lt;/embed&gt;');
}

function embed_wmedia(width, height, link) {
	document.writeln('&lt;embed type=&quot;application/x-mplayer2&quot; src=&quot;'+link+'&quot; autosize=&quot;1&quot; width=&quot;'+width+'&quot; height=&quot;'+height+'&quot; showcontrols=&quot;1&quot; showstatusbar=&quot;0&quot; showdisplay=&quot;0&quot; autostart=&quot;0&quot;&gt;&lt;/embed&gt;');
}
		&lt;?php
	}

	/**
	 * Get the SimplePie build timestamp
	 *
	 * Uses the git index if it exists, otherwise uses the modification time
	 * of the newest file.
	 */
	public static function get_build()
	{
		$root = dirname(dirname(__FILE__));
		if (file_exists($root . '/.git/index'))
		{
			return filemtime($root . '/.git/index');
		}
		elseif (file_exists($root . '/SimplePie'))
		{
			$time = 0;
			foreach (glob($root . '/SimplePie/*.php') as $file)
			{
				if (($mtime = filemtime($file)) &gt; $time)
				{
					$time = $mtime;
				}
			}
			return $time;
		}
		elseif (file_exists(dirname(__FILE__) . '/Core.php'))
		{
			return filemtime(dirname(__FILE__) . '/Core.php');
		}

		return filemtime(__FILE__);
	}

	/**
	 * Format debugging information
	 */
	public static function debug(&amp;$sp)
	{
		$info = 'SimplePie ' . SIMPLEPIE_VERSION . ' Build ' . SIMPLEPIE_BUILD . &quot;\n&quot;;
		$info .= 'PHP ' . PHP_VERSION . &quot;\n&quot;;
		if ($sp-&gt;error() !== null)
		{
			$info .= 'Error occurred: ' . $sp-&gt;error() . &quot;\n&quot;;
		}
		else
		{
			$info .= &quot;No error found.\n&quot;;
		}
		$info .= &quot;Extensions:\n&quot;;
		$extensions = array('pcre', 'curl', 'zlib', 'mbstring', 'iconv', 'xmlreader', 'xml');
		foreach ($extensions as $ext)
		{
			if (extension_loaded($ext))
			{
				$info .= &quot;    $ext loaded\n&quot;;
				switch ($ext)
				{
					case 'pcre':
						$info .= '      Version ' . PCRE_VERSION . &quot;\n&quot;;
						break;
					case 'curl':
						$version = curl_version();
						$info .= '      Version ' . $version['version'] . &quot;\n&quot;;
						break;
					case 'mbstring':
						$info .= '      Overloading: ' . mb_get_info('func_overload') . &quot;\n&quot;;
						break;
					case 'iconv':
						$info .= '      Version ' . ICONV_VERSION . &quot;\n&quot;;
						break;
					case 'xml':
						$info .= '      Version ' . LIBXML_DOTTED_VERSION . &quot;\n&quot;;
						break;
				}
			}
			else
			{
				$info .= &quot;    $ext not loaded\n&quot;;
			}
		}
		return $info;
	}

	public static function silence_errors($num, $str)
	{
		// No-op
	}

	/**
	 * Sanitize a URL by removing HTTP credentials.
	 * @param string $url the URL to sanitize.
	 * @return string the same URL without HTTP credentials.
	 */
	public static function url_remove_credentials($url)
	{
		return preg_replace('#^(https?://)[^/:@]+:[^/:@]+@#i', '$1', $url);
	}
}
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