3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $LinkRegex = '/(?!(\d+\/\d+)\s*(\d{7,10})\s*)(?<Link>[0-9]{1,2}\/[0-9]{1,2}:?[0-9]?[0-9]?)/'; preg_match_all($LinkRegex, "21/8 664922003 0 0 1 21/1:26,21/1:27,21/1:28", $LinkMatches); var_dump($LinkMatches);
Output for 4.4.6 - 4.4.9, 5.2.2 - 7.1.0
array(5) { [0]=> array(3) { [0]=> string(7) "21/1:26" [1]=> string(7) "21/1:27" [2]=> string(7) "21/1:28" } [1]=> array(3) { [0]=> string(0) "" [1]=> string(0) "" [2]=> string(0) "" } [2]=> array(3) { [0]=> string(0) "" [1]=> string(0) "" [2]=> string(0) "" } ["Link"]=> array(3) { [0]=> string(7) "21/1:26" [1]=> string(7) "21/1:27" [2]=> string(7) "21/1:28" } [3]=> array(3) { [0]=> string(7) "21/1:26" [1]=> string(7) "21/1:27" [2]=> string(7) "21/1:28" } }
Output for 5.2.0 - 5.2.1
Warning: preg_match_all(): Compilation failed: unrecognized character after (?< at offset 33 in /in/0bAAK on line 5 NULL
Output for 4.3.11 - 4.4.5, 5.0.0 - 5.1.6
Warning: preg_match_all(): Compilation failed: unrecognized character after (?< at offset 33 in /in/0bAAK on line 5 array(0) { }
Output for 4.3.0 - 4.3.10
Warning: Compilation failed: unrecognized character after (?< at offset 33 in /in/0bAAK on line 5 array(0) { }