3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $regexp = '/(\(+\d{2}\)+)\s+(\d{4,5})\s+\-+\s+(\d{4})/g'; $matches=array(); preg_match('(11) 4789 2180', $regexp, $matches); print_r($matches);
Output for 4.3.11 - 5.6.21, 7.0.0 - 7.1.0
Warning: preg_match(): Unknown modifier '4' in /in/pZQCE on line 6 Array ( )
Output for hhvm-3.10.0 - 3.12.0
Warning: Unknown modifier '4': [(11) 4789 2180] in /in/pZQCE on line 6 Array ( )
Output for 4.3.0 - 4.3.10
Warning: Unknown modifier '4' in /in/pZQCE on line 6 Array ( )