SimpleXML encode/decode ref sample

xmltest.php

<?php

$xml = <<<EOF
<?xml version="1.0" encoding="utf-8"?>
<doc>
  <test>
    &lt;You shall do pass&gt;
  </test>
</doc>
EOF;


$XMLElement = simplexml_load_string($xml);
// First test - can I get the same output?
echo $XMLElement->asXML();

// Second test - what do I get when I encode?
echo (string)$XMLElement->test;

// Third test - can I get unencoded contents of test?
echo $XMLElement->test->asXML();