3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $string = "helloworld"; echo isset($string['check'][0]) ? 0 : 1;
Output for 4.3.0 - 5.3.29, 7.0.0 - 7.1.0
1
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
0