3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php preg_match('(\d+)', 'Осталось всего 2', $roomsLeftMatches); $left = isset($roomsLeftMatches[1]) ? $roomsLeftMatches[1] : null; var_dump($left);
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
NULL