3v4l.org

run code in 300+ PHP versions simultaneously
<?php $text = 'My Name is #P_NAM3# and \r\n I am #P_AG2# years old'; $r = '#([^#]+)#'; //$r = '#[(?<name>\S+)\]#'; //$r = '#.+?#'; //$r = '#(.+?)#'; //$r = '#\w*#'; preg_match_all('/'.$r.'/m', $text, $m); var_dump($m);
Output for 4.3.0 - 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 - 5.6.38, 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 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
array(2) { [0]=> array(2) { [0]=> string(8) "#P_NAM3#" [1]=> string(7) "#P_AG2#" } [1]=> array(2) { [0]=> string(6) "P_NAM3" [1]=> string(5) "P_AG2" } }

preferences:
234.99 ms | 406 KiB | 448 Q