(PHP 8 >= 8.4.0)
Dom\HTMLDocument::saveXmlFile — Serializes the document as an XML file
Serializes the document as an XML file.
filenameoptionsLIBXML_NOEMPTYTAG and LIBXML_NOXMLDECL options are supported. Prior to PHP 8.3.0, only the LIBXML_NOEMPTYTAG option is supported.The number of bytes written on success, or false on failure.
filename is an empty string or contains any null bytes.