3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $var = 'wasd'; var_dump(isset($var['waa']), $var['waa']);
Output for 5.4.0 - 7.1.0
Warning: Illegal string offset 'waa' in /in/pX65Q on line 5 bool(false) string(1) "w"
Output for 4.3.0 - 4.4.9, 5.0.3 - 5.3.29
bool(true) string(1) "w"
Output for 5.0.0 - 5.0.2
bool(false) string(1) "w"