3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = ''; echo $x[0]; var_dump($x[0]);
Output for 5.2.10 - 7.2.0
Notice: Uninitialized string offset: 0 in /in/cJL98 on line 4 Notice: Uninitialized string offset: 0 in /in/cJL98 on line 5 string(0) ""
Output for 4.3.0 - 5.2.9
Notice: Uninitialized string offset: 0 in /in/cJL98 on line 4 Notice: Uninitialized string offset: 0 in /in/cJL98 on line 5 string(0) ""