3v4l.org

run code in 300+ PHP versions simultaneously
<?php function stringxor($o1, $o2) { $res = ''; for($i=0;$i<strlen($o1);$i++) $res .= chr(ord($o1[$i]) ^ ord($o2[$i])); return $res; } echo base64_decode('VA5QA1cCVQgPXwEAXwZVVVsHBgtfUVBaV1QEAwIFVAJWAwBRC1tRVA==');

preferences:
66.64 ms | 402 KiB | 5 Q