3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_match_all('/#(\w+)\b/', '#tag1 41654 #tag 1 #tag3', $r)); var_dump($r);
Output for 4.3.0 - 7.1.0
int(3) array(2) { [0]=> array(3) { [0]=> string(5) "#tag1" [1]=> string(4) "#tag" [2]=> string(5) "#tag3" } [1]=> array(3) { [0]=> string(4) "tag1" [1]=> string(3) "tag" [2]=> string(4) "tag3" } }