3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match('|\[embed\]([^[]+)\[/embed\]|U', 'xxx', $match); print_r($match);
Output for 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Array ( )
preferences:
196.57 ms | 403 KiB | 209 Q