Online PHP editor | refs for HHJSl

@ 2014-09-01T12:06:09Z

<?php
$a = array ('test' => 1, 'hello' => NULL, 'pie' => array('a' => 'apple'));

unset($a['foo']);
var_dump(isset($a['test']));            // TRUE
var_dump(isset($a['foo']));             // FALSE
var_dump(isset($a['hello']));           // FALSE