3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php define('HERVE', 200); echo HERVE; runkit_constant_remove(HERVE); define('HERVE', 500); echo HERVE;
based on g0rtR
Output for 7.0.0 - 7.2.0
200 Fatal error: Uncaught Error: Call to undefined function runkit_constant_remove() in /in/s4IQc:5 Stack trace: #0 {main} thrown in /in/s4IQc on line 5
Process exited with code 255.
Output for 5.3.22 - 5.6.28
200 Fatal error: Call to undefined function runkit_constant_remove() in /in/s4IQc on line 5
Process exited with code 255.