PHP | DOMDocument saveXML() Function

The DOMDocument::saveXML() function is an inbuilt function in PHP which is used to create an XML document from the DOM representation. This function is used after building a new dom document from scratch. 

Syntax:

string DOMDocument::saveXML( DOMNode $node, int $options = 0 )

Parameters: This function accepts two parameters as mentioned above and described below:

• $node: This parameter is used for output only for specific node without XML declaration rather than the entire document.
• $options: This parameter adds the additional options. Currently this parameter supports only LIBXML_NOEMPTYTAG.

Return Value: This function returns the XML document on success or FALSE on failure. 

Below programs illustrate the DOMDocument::saveXML() function in PHP: 

Program 1:

php

<?php

// Create a new DOMDocument
$domDocument = new DOMDocument('1.0', 'iso-8859-1');

// Use createTextNode() function to create a text node
$domTN = $domDocument->createTextNode('GeeksforGeeks');

// Append element to the document
$domDocument->appendChild($domTN);

// Use saveXML() function to save the XML document
echo $domDocument->saveXML();

?>

Output:

<?xml version="1.0" encoding="iso-8859-1"?>
GeeksforGeeks

Program 2:

php

<?php

// Create a new DOMDocument
$domDocument = new DOMDocument('1.0', 'iso-8859-1');

// Use createElement() function to create an element node
$domElement = $domDocument->createElement('organization',
                                       'GeeksforGeeks');

// Append element to the document
$domDocument->appendChild($domElement);

// Use saveXML() function to save a XML document
echo $domDocument->saveXML();

?>

Output:

<?xml version="1.0" encoding="iso-8859-1"?>
<organization>GeeksforGeeks</organization>

Reference: https://www.php.net/manual/en/domdocument.savexml.php