(PHP 4, PHP 5, PHP 7) Parse XML data into an array structure

(PHP 5 >= 5.1.0, PHP 7) Return current key

(PHP 4 >= 4.0.5, PHP 5, PHP 7) Create an XML parser with namespace support

(PHP 5 >= 5.2.11, PHP 7) Disable the ability to load external entities

(PHP 4 >= 4.3.0, PHP 5, PHP 7) Determines if an array value represents an XMLRPC fault

(PHP 5 >= 5.1.2, PHP 7) Returns namespaces declared in document

(PHP 4, PHP 5, PHP 7) Set up start and end element handlers

(PHP 5, PHP 7) Set value for a parameter bool

(PHP 5 >= 5.1.3, PHP 7) Adds an attribute to the SimpleXML element

(PHP 5, PHP 7) Transform to XML string XSLTP