3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match_all('/^[a-z0-9_]+|::([a-z0-9_]+)/', 'lol::second::third::fourth', $matches); var_dump($matches);
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, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 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(4) { [0]=> string(3) "lol" [1]=> string(8) "::second" [2]=> string(7) "::third" [3]=> string(8) "::fourth" } [1]=> array(4) { [0]=> string(0) "" [1]=> string(6) "second" [2]=> string(5) "third" [3]=> string(6) "fourth" } }

preferences:
236.47 ms | 406 KiB | 353 Q