3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php session_start(); $_SESSION['first']=5; print_r($_SESSION['first']);
Output for 5.2.3 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
5
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.2 - 5.2.2
Warning: session_start(): Cannot send session cookie - headers already sent in /in/L6A2O on line 2 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /in/L6A2O:2) in /in/L6A2O on line 2 5
Output for 4.3.0 - 4.3.1
Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cookie - headers already sent in /in/L6A2O on line 2 Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cache limiter - headers already sent (output started at /in/L6A2O:2) in /in/L6A2O on line 2 5