(PHP 5 >= 5.1.0, PHP 7) Move to next element

(PHP 5 >= 5.1.0, PHP 7) Rewind to the first element

(PHP 5 >= 5.0.1, PHP 7) Return a well-formed XML string based on SimpleXML element

(PHP 5 >= 5.1.0, PHP 7) Checks whether the current element has sub elements.

(PHP 5 >= 5.2.0, PHP 7) Runs XPath query on XML data

(PHP 5 >= 5.0.1, PHP 7) Finds children of given node

(PHP 5, PHP 7) Get a SimpleXMLElement object from a DOM node.

(PHP 5 >= 5.0.1, PHP 7) Creates a new SimpleXMLElement object

(PHP 5 >= 5.1.0, PHP 7) Check whether the current element is valid

(PHP 5 >= 5.3.0, PHP 7) Counts the children of an element