XML Type Format Inclusion of Font Attributes

When I initially posed this question here: question here, I was given this suggested code that I thought worked fine.

<?php // /demo/temp_pkonstan2.php

/**
 * Some XML-related ideas
 * See: http://www.experts-exchange.com/Programming/Languages/Scripting/PHP/Q_28668382.html
 */
error_reporting(E_ALL);

// A MALFORMED XML DOCUMENT FROM THE QUESTION AT EE
$xml = <<<EOD
<ttl>This is the Title</ttl>
<sub>This is a sub-title</sub>
<bod>This is a body with <em>Italics in the middle</em></bod>
<con>This creates a continue button</con>
EOD;

// CORRECT THE FORMATION OF THE XML
$xml = '<wrap>' . $xml . '</wrap>';

// TRY TO MAKE AN OBJECT
$obj = SimpleXML_Load_String($xml);

// SHOW THE PROPERTIES OF THE OBJECT
echo '<pre>';
foreach ($obj as $key => $value)
{
    echo PHP_EOL . 'obj->' . "$key = " . $value;
}

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But upon closer inspection, the code in the third line that begins with <bod> cuts off when it encounters the <em>.  The output looks like this:

obj->ttl = This is the Title
obj->sub = This is a sub-title
obj->bod = This is a body with
obj->con = This creates a continue button

I need some help in how to fix this. ]
The third line should look like this:
obj->bod = This is a body with <em>Italics in the middle</em>

Thanks.