PHP | DOMElement setIdAttributeNode() Function

PHP | DOMElement setIdAttribute() Function

Last Updated : 26 Feb, 2020

The DOMElement::setIdAttribute() function is an inbuilt function in PHP which is used to declare the attribute specified by name to be of type ID. Syntax:

void DOMElement::setIdAttribute( string $name, bool $isId )

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

$name: It specifies the name of the attribute.
$isId: It specifies whether if you want name to be of type ID.

Return Value: This function returns nothing. Exceptions: This function throws DOM_NO_MODIFICATION_ALLOWED_ERR, if the node is readonly or DOM_NOT_FOUND, if name is not an attribute of this element. Below examples illustrate the DOMElement::setIdAttribute() function in PHP: Example 1:

php

<?php

// Create a new DOM Document
$dom = new DOMDocument('1.0', 'iso-8859-1');
 
// Enable validate on parse
$dom->validateOnParse = true;
 
// Create a div element
$element = $dom->appendChild(new DOMElement('div'));
 
// Create a id attribute to div
$attr = $element->setAttributeNode(new DOMAttr('id',
                                  'geeksforgeeks'));
 
// Set that attribute as id
$element->setIDAttribute('id', true);

echo $dom->saveXML();
?>

Output: Press Ctrl+U to see the DOM.

Example 2:

php

<?php

// Create a new DOM Document
$dom = new DOMDocument('1.0', 'iso-8859-1');
 
// Enable validate on parse
$dom->validateOnParse = true;
 
// Create a div element
$element = $dom->appendChild(new DOMElement('div', 
                                 'GEEKSFORGEEKS'));
 
// Create a id attribute to div
$attr = $element->setAttributeNode(new DOMAttr('id', 
                                  'geeksforgeeks'));
 
// Set that attribute as id
$element->setIDAttribute('id', true);
 
// Get the text of element with id='geeksforgeeks'
// just to see if it works
$value = $dom->getElementById('geeksforgeeks')->textContent;
 
echo $value;
?>

Output:

GEEKSFORGEEKS

Reference: https://www.php.net/manual/en/domelement.setidattribute.php

PHP | DOMElement setIdAttributeNode() Function

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