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run code in 200+ php & hhvm versions
Bugs & Features
<?php $str = 'a,b\\,c\\\\,d\\'; preg_match_all('/(?:[^\\\\,]|\\\\.)+|\\\\$/', $str, $matches); var_dump($matches[0]);
based on 9qIQs
Output for 4.3.0 - 7.1.10
array(4) { [0]=> string(1) "a" [1]=> string(6) "b\,c\\" [2]=> string(1) "d" [3]=> string(1) "\" }