3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php echo "start"; __exec('kill -9 ' . getmypid()); echo "you should not see this";
Output for 7.0.0 - 7.2.0
start Fatal error: Uncaught Error: Call to undefined function __exec() in /in/WHv5P:3 Stack trace: #0 {main} thrown in /in/WHv5P on line 3
Process exited with code 255.
Output for 5.0.0 - 5.6.28
start Fatal error: Call to undefined function __exec() in /in/WHv5P on line 3
Process exited with code 255.
Output for 4.4.5 - 4.4.9
start Fatal error: Call to undefined function: __exec() in /in/WHv5P on line 3
Process exited with code 255.
Output for 4.3.2 - 4.4.4
start Fatal error: Call to undefined function: __exec() in /in/WHv5P on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
start Fatal error: Call to undefined function: __exec() in /in/WHv5P on line 3