https://www.php.net/manual/en/refs.xml.php
PHP: XML Manipulation - Manual
xml manipulationphpmanual
https://www.php.net/manual/de/refs.xml.php
PHP: XML-Manipulation - Manual
xml manipulationphpmanual
https://docs.oracle.com/en/database/oracle/oracle-database/26/adxdb/manipulation-of-XML-in-XML-DB.html
Manipulation of XML Data in Oracle XML DB
The following are covered here: XQuery, XMLType operations, and indexing of XML data.
data inmanipulationxmloracledb