(PHP 5 >= 5.1.0, PHP 7) Lookup namespace for a prefix

(^) Get the old value for the changed property

(^) To load a second or subsequent schema file to a SDO_DAS_XML object

(PHP 5 >= 5.1.0, PHP 7) Get the value of an attribute by localname and URI

(PECL xmldiff >= 0.8.0) Produce merged DOMDocument

(PHP 5 >= 5.1.0, PHP 7) Set the URI containing the XML to parse

(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0) End attribute

(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0) End current CDATA

(PHP 5, PHP 7) Get value of a parameter string

(PHP 5, PHP 7) Set the streams context for the next libxml document load or write