<?php
 
$str = '<b>Sort By\u00a0-\u00a0</b><a href="http://p...content-available-to-author-only...d.com/files/9704/Dil Dhadakne Do (2015) Mp3 Songs/atoz/1.html">A to Z\u00a0|\u00a0</a><a href="http://p...content-available-to-author-only...d.com/files/9704/Dil Dhadakne Do (2015) Mp3 Songs/recent/1.html">Recently Added\u00a0|\u00a0</a><a href="http://p...content-available-to-author-only...d.com/files/9704/Dil Dhadakne Do (2015) Mp3 Songs/downloads/1.html">Most Downloaded</a>';
 
 
echo unicodeString($str);
function unicodeString($str, $encoding=null) {
    if (is_null($encoding)) $encoding = ini_get('mbstring.internal_encoding');
    return preg_replace_callback('/\\\\u([0-9a-fA-F]{4})/u', create_function('$match', 'return mb_convert_encoding(pack("H*", $match[1]), '.var_export($encoding, true).', "UTF-16BE");'), $str);
}
 

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