Description:
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Somewhere within the SoapClient and libxml code are functions that 
a) parse an XSD schema into a set of data types (available through SoapClient::__gettypes), and 
b) apply that schema to an XML document to produce a native PHP object.

Would it be possible to make these functions available to all DOMDocument objects, so that an XML document returned from a non-SOAP web service can be bound - using the schema - to a native PHP object?

(related, existing functions include xmlrpc_decode, wddx_unserialize, XSLTProcessor::transformToDoc and DOMDocument::schemaValidate)

Test script:
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// load the XSD Schema
$dom = new DOMDocument;
$dom->load('example.xsd');

// import the schema to a SchemaBinder class, similar to XSLTProcessor::importStylesheet
$binder = new SchemaBinder;
$binder->importSchema($dom);

// load the XML document
$dom = new DOMDocument;
$dom->load('example.xml');

// bind the XML document to a native PHP object, using the schema
$data = $binder->bind($dom);

===========================

/* or more simply */
$data = $dom->bindFromSchema('example.xsd');