3v4l.org

run code in 500+ PHP versions simultaneously
<?php session_start(); echo(ini_set('session.gc_maxlifetime', 1500));
Output for 8.5.0 - 8.5.3
Warning: ini_set(): Session ini settings cannot be changed when a session is active (started from /in/nOv0L on line 2) in /in/nOv0L on line 3
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18
Warning: ini_set(): Session ini settings cannot be changed when a session is active in /in/nOv0L on line 3
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33
Warning: ini_set(): A session is active. You cannot change the session module's ini settings at this time in /in/nOv0L on line 3
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33
1440

preferences:
94.02 ms | 1999 KiB | 4 Q