3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $input = "<style> poopface <?style>"; preg_match('~<style>(.*?)]~', $input, $output); echo $output[1]; // 256 ?>
based on DNhk5
Output for 5.3.0 - 5.6.28, 7.0.0 - 7.1.0
Notice: Undefined offset: 1 in /in/o7nn9 on line 4
Output for hhvm-3.10.0 - 3.12.0
Notice: Undefined index: 1 in /in/o7nn9 on line 4
Output for 4.3.0 - 5.2.17
Notice: Undefined offset: 1 in /in/o7nn9 on line 4