3v4l.org

run code in 300+ PHP versions simultaneously
<?php $modules = array('module1', 'module2'); $mod = array_flip($modules); foreach($mod as $key => $val) { if (!isset($mod[$key)) { echo 'continue'; continue; } }
Output for 5.3.0 - 5.3.28, 5.4.0 - 5.4.29
Parse error: syntax error, unexpected ')', expecting ']' in /in/SIbLI on line 7
Process exited with code 255.
preferences:
183.83 ms | 1395 KiB | 66 Q