XML-Enabled Applications - Part 2
September 25, 2007[From WebReference]
The preceding example shows how you might move the XML processing performed by your PHP/Oracle application from PHP to Oracle, thus taking advantage of the optimizations provided by the Oracle database server. In particular, you saw how to generate an XML document from scratch and apply an XSL transformation inside the database, rather than performing these operations with PHP.
The article continues at http://www.webreference.com/programming/php/xml-enabled-applications2/