(PHP 5 >= 5.1.0, PHP 7) Returns a copy of the current node as a DOM object

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

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

(PHP 4, PHP 5, PHP 7) Converts a string with ISO-8859-1 characters encoded with UTF-8 to single-byte ISO-8859-1

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

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

(^) Get the property name for a changed property

(PHP 5 >= 5.1.0, PHP 7) Disable libxml errors and allow user to fetch error information as needed

(PHP 5 >= 5.1.2, PHP 7, PECL xmlwriter >= 0.1.0) Create start DTD AttList

(PHP 5 >= 5.1.0, PHP 7) Retrieve array of errors