3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 'assert'; $a('false');
based on 0OZLA
Output for 7.1.0 - 7.2.0
Warning: Cannot call assert() with string argument dynamically in /in/8MRnj on line 5
Output for 5.3.18 - 7.0.20
Warning: assert(): Assertion "false" failed in /in/8MRnj on line 5