3v4l.org

run code in 300+ PHP versions simultaneously
<?php function foo($bar, $bar) { var_dump($bar); } foo("test", "php");
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.21
string(3) "php"
preferences:
190.78 ms | 1401 KiB | 161 Q