3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php session_regenerate_id(true);
Output for 7.0.0 - 7.1.0
Warning: session_regenerate_id(): Cannot regenerate session id - session is not active in /in/vuU4L on line 2
Output for 4.3.2 - 4.4.2, 5.0.0 - 5.1.6, 5.2.3 - 5.6.28, hhvm-3.10.0 - 3.12.0
Output for 4.4.3 - 4.4.9, 5.2.0 - 5.2.2
Warning: session_regenerate_id(): Cannot regenerate session id - headers already sent in /in/vuU4L on line 2
Output for 4.3.0 - 4.3.1
Fatal error: Call to undefined function: session_regenerate_id() in /in/vuU4L on line 2