3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_match('/^[1-9][0-9]{0-2}\.([0-9]{1-3}\.){2}[0-9]{0-3}/', '192.168.1.1'));
Output for 4.3.0 - 7.2.0
int(0)