PHP unserialize utf8 fix

php-unserialize_utf8_fix.php

<?php
/**
 * Mulit-byte Unserialize (http://stackoverflow.com/questions/2853454/php-unserialize-fails-with-non-encoded-characters)
 *
 * UTF-8 will screw up a serialized string
 *
 * @access private
 * @param string
 * @return string
 */
function mb_unserialize($string) {
    $string = preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.strlen('$2').':\"$2\";'", $string);
    return unserialize($string);
}