What are the differences between DOMNode and DOMElement objects in PHP, and how can one convert between them?

The main difference between DOMNode and DOMElement objects in PHP is that DOMElement is a subclass of DOMNode specifically for representing elements in an XML or HTML document. To convert between DOMNode and DOMElement, you can simply check if the node is an instance of DOMElement and then cast it accordingly. 

// Check if the node is an instance of DOMElement and then cast it
if ($node instanceof DOMElement) {
    $element = $node;
} else {
    $element = $node; // Cast to DOMElement
}

Keywords

DOMNode DOMElement conversion PHP object-oriented programming

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