(PHP 5, PHP 7) Insert a string at the specified 16-bit unit offset

(PHP 5, PHP 7) Load XML from a string public

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

(PHP 5, PHP 7) Indicates if two nodes are the same node

(PHP 5, PHP 7) Append the string to the end of the character data of the node

(PHP 5 >= 5.0.1, PHP 7) Checks if a node represents a comment