3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match( '/(\d+)/', '222', $matches); echo $matches[0]; // 1234
Output for 4.3.0 - 5.0.5, 5.1.1 - 7.1.0
222
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/N7kLP on line 3
Process exited with code 255.