3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php function slow_equals($a, $b) { $diff = strlen($a) ^ strlen($b); for($i = 0; $i < strlen($a) AND $i < strlen($b); $i++) { $diff |= ord($a[$i]) ^ ord($b[$i]); } return $diff === 0; }
Output for 4.3.0 - 7.2.0