3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $array = array('all', 'pippo' => 'franco', 'hello' => 'ciao'); if (isset($array[0]) && $array[0] == 'all') { echo 'ok'; } else { echo 'nok'; }
Output for 4.3.0 - 5.6.21, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
ok