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   // 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',   // 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   // 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
