Online PHP editor | refs for 6rL5L

<?php $expected_array_got_string = 'einstring'; var_dump(isset($expected_array_got_string['und'])); var_dump(isset($expected_array_got_string['und'][0])); var_dump(isset($expected_array_got_string['und'][0]['test'])); var_dump(isset($expected_array_got_string['und']['test'][1])); var_dump(isset($expected_array_got_string['und']['test'][0]));