3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $subject = "text text text text [hello] text (hello2) (hello3) text"; $pattern = '/(?<=\()(.+)(?=\))/is'; preg_match($pattern, $subject, $matches); print_r($matches);
Output for 4.3.0 - 7.1.0
Array ( [0] => hello2) (hello3 [1] => hello2) (hello3 )