3v4l.org

run code in 300+ PHP versions simultaneously
<?php $parm = $_POST['parm']; $parm = 's'; if(isset($parm['password']) && $parm['password'] === $parm) { echo 'ok'; }
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined array key "parm" in /in/9p7It on line 3
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined index: parm in /in/9p7It on line 3
Output for 7.3.32 - 7.3.33
Output for 5.3.0 - 5.3.29
Notice: Undefined index: parm in /in/9p7It on line 3 ok
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.3 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17
Notice: Undefined index: parm in /in/9p7It on line 3 ok
Output for 5.0.0 - 5.0.2
Notice: Undefined index: parm in /in/9p7It on line 3
preferences:
257.21 ms | 401 KiB | 328 Q