3v4l.org

run code in 300+ PHP versions simultaneously
<?php $matches = []; preg_match_all("/%\w/", "%s %d", $matches); var_dump($matches);
Output for 7.4.0 - 7.4.33, 8.0.1 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
array(1) { [0]=> array(2) { [0]=> string(2) "%s" [1]=> string(2) "%d" } }
preferences:
139.17 ms | 402 KiB | 122 Q