3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = 'a,b,c,d'; return preg_split('/(?<![^\\])\,/', $str);
based on dgAnt
Output for 4.3.11 - 7.2.0
Warning: preg_split(): Compilation failed: missing terminating ] for character class at offset 11 in /in/gQV8Y on line 3
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: missing terminating ] for character class at offset 11 in /in/gQV8Y on line 3