PHP | DOMElement __construct() Function

Last Updated : 20 Feb, 2020

The DOMElement::__construct() function is an inbuilt function in PHP which is used to create a new DOMElement object. This object is read-only and may be appended to a document, but additional nodes may not be appended to this node until the node is associated with a document. Syntax:

public DOMElement::__construct( string $name, string $value, string $namespaceURI )

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

$name: It specifies the tag name of the element.
$value (Optional): It specifies the value of the element.
$namespaceURI (Optional): It specifies the namespace URI to create the element within a specific namespace.

Below given programs illustrate the DOMElement::__construct() function in PHP: Program 1:

php

<?php

// Create a new DOMDocument
$dom = new DOMDocument();

// Append a new Child which is a DOMElement
$element = $dom->appendChild(new DOMElement('root'));

// Create another h1 element using
// DOMElement  constructor
$element_new = new DOMElement('h1',
          'Heading', 'http://sample_url');

// Append the child
$element->appendChild($element_new);

// Save the XML
echo $dom->saveXML(); 
?>

Output:

<?xml version="1.0"?>
<root><h1 xmlns="http://sample_url">Heading</h1></root>

Program 2:

php

<?php

// Create a new DOMDocument
$dom = new DOMDocument();

// Append a new Child which is a DOMElement
$element = $dom->appendChild(new DOMElement('root'));

// Create another DOMElement for mark
$element_mark = new DOMElement('mark', 'Marked');

// Append the child
$element->appendChild($element_mark);

// Create another DOMElement for break
$element_break = new DOMElement('br');

// Append the child
$element->appendChild($element_break);

// Create another DOMElement for delete
$element_delete = new DOMElement('del', 'Deleted');

// Append the child
$element->appendChild($element_delete);

// Create another DOMElement for break
$element_break = new DOMElement('br');

// Append the child
$element->appendChild($element_break);

// Create another DOMElement for bold
$element_bold = new DOMElement('b', 'Bold');

// Append the child
$element->appendChild($element_bold);

// Save the XML
echo $dom->saveXML(); 
?>

Output:

<?xml version="1.0"?>
<root>
    <mark>Marked</mark><br/>
    <del>Deleted</del><br/>
    <b>Bold</b>
</root>

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

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