3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $array = array( 'foo' => null, 'bar' => '', 'baz' => FALSE, ); echo (string) isset($array['foo']); echo "\n"; echo (string) isset($array['bar']); echo "\n"; echo (string) isset($array['baz']);
Output for 4.3.0 - 7.2.0
1 1