3v4l.org

run code in 300+ PHP versions simultaneously
<?php //Source: https://bugs.php.net/bug.php?id=64515 function foo($unused = null, $unused = null, $bar = array()) { return 1; } foo();
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.36, 5.6.0 - 5.6.28
preferences:
261.34 ms | 1397 KiB | 195 Q