3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $unset_int += 25; // 0 + 25 => 25 var_dump($unset_int); ?>
Output for 5.0.4 - 7.2.0
Notice: Undefined variable: unset_int in /in/puqvg on line 3 int(25)
Output for 4.3.0 - 5.0.3
Notice: Undefined variable: unset_int in /in/puqvg on line 3 int(25)