3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = array(1); for ($mppb_times = 4; $mppb_times>0; $mppb_times--) $a = array_merge($a, $a); print_r($blogs);
based on nRI3F
Output for 5.0.4 - 7.3.0rc4
Notice: Undefined variable: blogs in /in/Vo7WW on line 10
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: blogs in /in/Vo7WW on line 10