3v4l.org

run code in 300+ PHP versions simultaneously
<?php $string = "Hello! 123 How Are You? 456"; preg_match_all('!\d !', $string, $matches); echo (int)implode('',$matches[0]);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 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 - 8.2.19, 8.3.0 - 8.3.7
3
preferences:
159.38 ms | 404 KiB | 201 Q