3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump( preg_match('/^pa\d{2}$/', 'pa04'), preg_match('/^pa\d{2}$/', 'c01'), preg_match('/^c\d{2}$/', 'c02'), preg_match('/^c\d{2}$/', 'pa03') );
Output for 4.3.0 - 7.2.0
int(1) int(0) int(1) int(0)