DOMDocument::saveXML

    (PHP 5, PHP 7, PHP 8)

    DOMDocument::saveXML — Dumps the internal XML tree back into a string

    Beschreibung

    publicDOMDocument::saveXML(?DOMNode$node = null, int$options = 0): string|false

    Creates an XML document from the DOM representation. This function is usually called after building a new dom document from scratch as in the example below.

    Parameter-Liste

    node

    Use this parameter to output only a specific node without XML declaration rather than the entire document.

    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.

    Rückgabewerte

    Returns the XML, or false if an error occurred.

    Fehler/Exceptions

    DOM_WRONG_DOCUMENT_ERR

    Raised if node is from another document.

    Changelog

    VersionBeschreibung
    8.3.0LIBXML_NOXMLDECL is now supported.

    Beispiele

    Beispiel #1 Saving a DOM tree into a string

    <?php

    $doc     = new DOMDocument('1.0');
    // we want a nice output
    $doc->formatOutput = true;

    $root = $doc->createElement('book');
    $root = $doc->appendChild($root);

    $title = $doc->createElement('title');
    $title = $root->appendChild($title);

    $text = $doc->createTextNode('This is the title');
    $text = $title->appendChild($text);

    echo     "Saving all the document:\n";
    echo     $doc->saveXML() . "\n";

    echo     "Saving only the title part:\n";
    echo     $doc->saveXML($title);

    ?>

    Das oben gezeigte Beispiel erzeugt folgende Ausgabe:

    Saving all the document: <?xml version="1.0"?> <book> <title>This is the title</title> </book> Saving only the title part: <title>This is the title</title>

    Siehe auch

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