3v4l.org

run code in 300+ PHP versions simultaneously
<?php preg_match_all('/([A-Z0-9][0-9]*(?=$|[A-Z][a-z])|[A-Z][a-z]+)/', 'NewFolder3', $decamelCase); var_dump($decamelCase);
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 - 7.1.25, 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 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array(2) { [0]=> array(3) { [0]=> string(3) "New" [1]=> string(6) "Folder" [2]=> string(1) "3" } [1]=> array(3) { [0]=> string(3) "New" [1]=> string(6) "Folder" [2]=> string(1) "3" } }

preferences:
222.85 ms | 406 KiB | 328 Q