3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump( preg_match_all('/((?:(?:[^\\\\])|(?:(\\\\){2}))+)/', "asdf\\dsf\dsfaf", $matches) ); var_dump($matches);
based on kXHWb
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
int(3) array(3) { [0]=> array(3) { [0]=> string(4) "asdf" [1]=> string(3) "dsf" [2]=> string(5) "dsfaf" } [1]=> array(3) { [0]=> string(4) "asdf" [1]=> string(3) "dsf" [2]=> string(5) "dsfaf" } [2]=> array(3) { [0]=> string(0) "" [1]=> string(0) "" [2]=> string(0) "" } }