php转义数组

function mb_unserialize($array) {
    $serial_str = iconv('gbk','utf-8',serialize($array));
    $serial_str= preg_replace('!s:(\d+):"(.*?)";!se', "'s:'.strlen('$2').':\"$2\";'", $serial_str );
    $serial_str= str_replace("\r", "", $serial_str);
    return unserialize($serial_str);
}