3v4l.org

run code in 300+ PHP versions simultaneously
<?php function Test($x=1,$x=1) { echo ($x + $x); } echo Test(2);
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 - 5.6.28
2

preferences:
230.5 ms | 1388 KiB | 162 Q