3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $subject = <<<EOL 1. first 2. second 3. third EOL; preg_match_all('/^.{1,20}?$/i', $subject, $matches); var_dump($matches);
Output for 4.3.0 - 7.1.0
array(1) { [0]=> array(0) { } }