3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php preg_match("/\__$w\$w\__/", 'Bize __ bu** __ lazımdır. __yok+-sa__ bu mu', $matches); print_r($matches);
Output for 5.0.4 - 7.1.7
Notice: Undefined variable: w in /in/M7gZe on line 2 Array ( )
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: w in /in/M7gZe on line 2 Array ( )