AJAX and PHP

Chapter 3
// create the element
$book = $dom->createElement('book');
$book->appendChild($title);
$book->appendChild($isbn);
// append as a child of
$books->appendChild($book);
// build the XML structure in a string variable
$xmlString = $dom->saveXML();
// output the XML string
echo $xmlString;
?>
5. First let's do a simple test to see what phptest.php returns. Load
http://localhost/ajax/foundations/php/phptest.php in your web browser to
ensure it generates a well-formed XML structure:
Figure 3.1: Simple XML Structure Generated by PHP
If you don't get the expected result, be sure to check not only the code, but also your PHP
installation. See Appendix A for details about how to correctly set up your machine.
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