3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = preg_replace('/\d+/', '', '10c3'); print_r($y);
Output for 5.0.4 - 7.1.7
Notice: Undefined variable: y in /in/rJP2l on line 3
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: y in /in/rJP2l on line 3