3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $str = '1392'; echo $string = preg_replace('/\s+/', '', $string); echo (int)$str+1;
Output for 5.0.4 - 7.1.0
Notice: Undefined variable: string in /in/SNYvf on line 4 1
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: string in /in/SNYvf on line 4 1