DOMDocument::save

Dumps the internal XML tree back into a file

&reftitle.description; public ``int``false```DOMDocument::save` `string` `filename` `int` `options` 0

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.

&reftitle.parameters;

`filename`

- The path to the saved XML document.

`options`

- Additional Options. Currently only LIBXML_NOEMPTYTAG is supported.

&reftitle.returnvalues;

Returns the number of bytes written or &false; if an error occurred.

&reftitle.examples;

### Saving a DOM tree into a file

    <?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 'Wrote: ' . $doc->save("/tmp/test.xml") . ' bytes'; // Wrote: 72 bytes

    ?>

&reftitle.seealso;

- `DOMDocument::saveXML`
- `DOMDocument::load`
- `DOMDocument::loadXML`