3v4l.org

run code in 500+ PHP versions simultaneously
<?php $re = '~(?=/(\d+)/)~m'; $str = 'https://somesite.com/0/posts/20/290/755653-Title.html'; preg_match_all($re, $str, $matches); print_r($matches[1]);
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.34, 8.2.0 - 8.2.34, 8.3.0 - 8.3.35, 8.4.1 - 8.4.26, 8.5.0 - 8.5.11
Array ( [0] => 0 [1] => 20 [2] => 290 )
preferences:
28.06 ms | 1137 KiB | 7 Q