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Using PHP With XML (part 2)
PHP's DOM parser offers a simpler - though slower - alternative to the SAX parsing technique.

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As before, the first order of business is to read the XML data into memory. PHP offers three functions to do this: the xmldoc() and xmltree() functions accept a string containing XML data as argument, and build a tree structure from that string, while the xmldocfile() function accepts a filename as argument, and builds a DOM tree after reading the data in the file.


// create an XML-compliant string
$XMLDataString = "<?xml version=\"1.0\"?" . "><me><name>Joe

// create a document object
$XMLDoc = xmldoc($XMLDataString);
// create a tree object
$XMLTree = xmltree($XMLDataString);


You can also load a file directly.


// data file
$XMLFile = "me.xml";
// create a document object
$XMLDoc = xmldocfile($XMLFile);


Windows users should note that xmldocfile() needs the complete path to the file, including drive letter, to work correctly.

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