3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $foo = 'http://google.com?omg=wtf'; echo preg_replace('/(http|https)://(google.com/is', 'https://$2', $foo);
Output for 5.3.7 - 5.6.28, 7.0.0 - 7.1.0
Warning: preg_replace(): Unknown modifier '/' in /in/8SjVZ on line 5
Output for hhvm-3.10.0 - 3.12.0
Warning: Unknown modifier '/': [/(http|https)://(google.com/is] in /in/8SjVZ on line 5