Online PHP editor | refs for 7M075

<?php function test_isset($str) { $xml = '<field Default="' . $str . '"/>'; $field = new SimpleXmlElement($xml); var_dump(isset($field)); var_dump(isset($field['Default'])); var_dump(isset($field['XXX'])); } test_isset(""); test_isset("No"); test_isset("Yes"); test_isset("NULL"); test_isset("0"); test_isset("1"); test_isset("20");