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Dom\HTMLDocument::saveHtmlFile	Dom\HTMLDocument::saveXmlFile

Dom\HTMLDocument	Last updated: Mon, 26 Oct 2026

Dom\HTMLDocument::saveXml

(PHP 8 >= 8.4.0)

Dom\HTMLDocument::saveXml — Serializes the document as an XML string

Description

public function Dom\HTMLDocument::saveXml(?Dom\Node $node = null, int $options = 0): string|false

Serializes the document as an XML string.

Parameters

node: The node to serialize. If not provided, the entire document is serialized.
options: Additional Options. The LIBXML_NOEMPTYTAG and LIBXML_NOXMLDECL options are supported. Prior to PHP 8.3.0, only the LIBXML_NOEMPTYTAG option is supported.

Return Values

The serialized XML document string in the current document encoding, or false on failure.

Errors/Exceptions

Throws a Dom\DOMException with code Dom\WRONG_DOCUMENT_ERR if node is from another document.

See Also

Dom\HTMLDocument::saveXmlFile() - Serializes the document as an XML file
Dom\XMLDocument::saveHtml()

Dom\HTMLDocument::saveHtmlFile	Dom\HTMLDocument::saveXmlFile

Dom\HTMLDocument	Last updated: Mon, 26 Oct 2026