3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php var_dump(preg_match('/^\d+$/D', 0)); var_dump(preg_match('/^\d+$/D', 1)); var_dump(preg_match('/^\d+$/D', 2)); var_dump(preg_match('/^\d+$/D', -2));
based on aiNv9
Output for 4.3.0 - 7.2.0
int(1) int(1) int(1) int(0)