3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $input_date = '22/12/1231'; if(!preg_match('/(?P<d>\d{2})(?P<sep>\D)(?P<m>\d{2})\2(?P<y>\d{4})/',$input_date, $aux_date)) echo 'match';
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0