(PHP 5 >= 5.2.0)
DOMNode::C14NFile — Canonicalize nodes to a file
Canonicalize nodes to a file.
Path to write the output to.
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.
Number of bytes written or FALSE on failure