DOMNode to DOMElement in php

Question

I want to convert a DOMNode object from a call to getElementsByTagName() to a DOMElement in order to access methods like getElements

Answer 1

If anyone is looking for a more elegant solution in IntelliJ/PHPStorm. I managed to solve the issue like this:

    private function doSomething(DOMNode $child){
        
        if(!$child instanceof DOMElement)
            throw new Exception('DOMElement expected but got something else.');
        
        $attr = $child->getAttribute('attr'); //recognized by PHPStorm now as DOMElement
        
        /* and more code */
        
    }

All my code corretly assumes DOMNode which is de super class of DOMElement but also DOMComment etc. When I need DOMElement to use getAttribute for example, then I add above check.