3v4l.org

run code in 300+ PHP versions simultaneously
<?php $a = array("32" => "ohai"); echo $a["32"]; echo PHP_EOL; echo $a[32];
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.16, 8.3.0 - 8.3.3
ohai ohai

preferences:
194.95 ms | 408 KiB | 251 Q