3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = 'a\\\\,b,c\\,d'; var_dump(preg_split('/[^\\\\][\\\\],|(,)/', $str));
based on l9d7T
Output for 4.3.0 - 7.1.0
array(4) { [0]=> string(3) "a\\" [1]=> string(1) "b" [2]=> string(0) "" [3]=> string(1) "d" }