3v4l.org

run code in 300+ PHP versions simultaneously
<?php for ($i = 0, $string = "0192837465pqowieurytlaksjdhfgzmxncbv"; $i < 10; $i++) { $string = str_shuffle($string); echo $string.'<br />'; unset($string); }

preferences:
31.66 ms | 402 KiB | 5 Q