How do you delete elements from the DOM in PHP without reloading the document?

Deleting Elements from DOM without Reloading

In PHP, when you've loaded an HTML document into a DOMDocument object, you may need to remove certain elements. This can be achieved without creating a new DOMDocument altogether.

Sample Code:

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

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

Explanation:

The code iterates through the anchor elements () within the loaded HTML document. For each element, it checks if the nodeValue (text content) within it matches "First". If so, it retrieves the parent node of the current element and calls the removeChild() method on it.

This effectively removes the selected element from the DOM without reloading the entire document.

Additional Notes:

• See the documentation for DOMNode::$parentNode and DOMNode::removeChild() for more information.

• Related questions:

  • Removing attributes with DOMDocument
  • Using DOMDocument class to remove HTML elements

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