(PHP 5 >= 5.2.0, PHP 7, PHP 8)
DOMNode::C14NFile — Canonicalize nodes to a file
$uri,$exclusive = false,$withComments = false,$xpath = null,$nsPrefixes = nullCanonicalize nodes to a file.
uriPath to write the output to.
exclusiveEnable exclusive parsing of only the nodes matched by the provided xpath or namespace prefixes.
withCommentsRetain comments in output.
xpathAn array of XPaths to filter the nodes by. Each entry in this array is an associative array with:
query key containing the XPath expression as a string.
namespaces key containing an array that maps namespace prefixes (keys) to namespace URIs (values).
nsPrefixesAn array of namespace prefixes to filter the nodes by.
Number of bytes written 或者在失败时返回 false