DOMNode::C14NFile

(PHP 5 >= 5.2.0, PHP 7)

DOMNode::C14NFile — Canonicalize nodes to a file

public int DOMNode::C14NFile ( string $uri [, bool $exclusive [, bool $with_comments [, array $xpath [, array $ns_prefixes ]]]] )

Canonicalize nodes to a file.

uri: Path to write the output to.
exclusive: Enable exclusive parsing of only the nodes matched by the provided xpath or namespace prefixes.
with_comments: Retain comments in output.
xpath: An array of xpaths to filter the nodes by.
ns_prefixes: An array of namespace prefixes to filter the nodes by.

Number of bytes written 或者在失败时返回 FALSE