(PHP 5, PHP 7) Performs relaxNG validation on the document

(PHP 5, PHP 7, PECL tidy >= 0.5.2) Returns the value of the specified configuration option for the tidy document

(PHP 5, PHP 7) Adds new attribute node to element

(PHP 5, PHP 7) Test if the DOM implementation implements a specific feature

(PHP 5 >= 5.2.0, PHP 7) Canonicalize nodes to a file

(PHP 5, PHP 7) Creates a DOMDocument object of the specified type with its document element

(PHP 5 >= 5.3.0, PHP 7) Register PHP functions as XPath functions

(PHP 5, PHP 7) Create new cdata node public DOMCDATASection

(PHP 5 >= 5.2.2, PHP 7) Returns the parent node of the current node

(PHP 5, PHP 7, PECL tidy >= 0.5.2) Parse a document stored in a string