3v4l.org

run code in 300+ PHP versions simultaneously
<?php var_dump(preg_match("/(?P<foo>\\d{2,4})/si", 'foo bar 439689 lol', $m), $m);
Output for 4.3.3 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.3.7
int(1) array(3) { [0]=> string(4) "4396" ["foo"]=> string(4) "4396" [1]=> string(4) "4396" }
Output for 4.3.0 - 4.3.2
int(1) array(2) { [0]=> string(4) "4396" [1]=> string(4) "4396" }

preferences:
258.6 ms | 401 KiB | 460 Q