3v4l.org

run code in 300+ PHP versions simultaneously
<?php if (!$lastAccess) $lastAccess = time(); else { $lastAccess -= time(); } var_dump($lastAccess); if ($lastAccess > 5) { echo('session timeout'); }
Output for 5.0.4 - 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, 5.5.0 - 5.5.37, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.6
Notice: Undefined variable: lastAccess in /in/2Lb2i on line 2 int(1430839758) session timeout
Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.3
Notice: Undefined variable: lastAccess in /in/2Lb2i on line 2 int(1430839758) session timeout

preferences:
146.18 ms | 402 KiB | 214 Q