3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_replace('/(content)/aie', 'content','contnet'));
based on fRNX9
Output for 4.3.11 - 7.2.0
Warning: preg_replace(): Unknown modifier 'a' in /in/JQWLO on line 4 NULL
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier 'a' in /in/JQWLO on line 4 NULL