3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'a,b\\\,c,d'; var_dump(preg_match_all('/[^\\\\]\\\\,|([^,]+?)/', $str));
based on 5eA5I
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(6)
Output for 4.3.4 - 5.3.29
Warning: preg_match_all() expects at least 3 parameters, 2 given in /in/fGmVN on line 3 bool(false)
Output for 4.3.3

Process exited with code 139.
Output for 4.3.0 - 4.3.2
Warning: Wrong parameter count for preg_match_all() in /in/fGmVN on line 3 NULL