3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_match("/\\d{0,42}/si", 'foo bar 439689 lol', $m), $m);
based on TPiKq
Output for 4.3.0 - 7.2.0
int(1) array(1) { [0]=> string(0) "" }