How to Remove Elements from a DOMDocument in PHP Without Creating a New One?

Removing Elements with DOMDocument

In PHP, you can easily load and manipulate HTML documents using the DOMDocument class. However, you may encounter a need to remove elements from the loaded DOM, and this document will guide you through this process without creating a new DOM.

To delete an element from the DOMDocument, the parent node's removeChild() method must be employed. Here's how to do it:

<code class="php"><?php
$dom = new DOMDocument('1.0', 'utf-8');
$dom->loadHTML($html);

foreach($dom->getElementsByTagName('a') as $href) {
    if($href->nodeValue == 'First')
        $href->parentNode->removeChild($href);
}
?></code>

In this code, the removeChild() method is called on the parent node of the element to be deleted. The parentNode property of a DOMNode object references the parent node, and the removeChild() method removes the specified child node from the parent.

By utilizing the parentNode->removeChild() method, you can effectively remove elements from the DOM, allowing you to modify the structure of the loaded HTML document.

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