3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php error_reporting(E_ALL); $foo = 'hello'; var_dump( isset($foo[0][0]) );
Output for 5.4.0 - 7.0.3, hhvm-3.6.1 - 3.11.0
bool(true)
Output for 4.3.0 - 5.3.29
bool(false)