(PHP 5 >= 5.2.0)
DOMNode::C14N — Canonicalize nodes to a string
Canonicalize nodes to a string
Enable exclusive parsing of only the nodes matched by the provided xpath or namespace prefixes.
Retain comments in output.
An array of xpaths to filter the nodes by.
An array of namespace prefixes to filter the nodes by.
Returns canonicalized nodes as a string or FALSE on failure