3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
Output<?php session_start();
Output for 4.3.2 - 5.6.28, 7.0.0 - 7.1.0
Output Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /in/JcDQd:1) in /in/JcDQd on line 3 Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /in/JcDQd:1) in /in/JcDQd on line 3
Output for hhvm-3.12.0
Output
Output for hhvm-3.10.0

Process exited with code 153.
Output for 4.3.0 - 4.3.1
Output Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cookie - headers already sent by (output started at /in/JcDQd:1) in /in/JcDQd on line 3 Warning: session_start() [http://www.php.net/function.session-start]: Cannot send session cache limiter - headers already sent (output started at /in/JcDQd:1) in /in/JcDQd on line 3