neerolyte/php-lyte-xml

<?php
namespace Lyte\XML;
class DOMElement extends DOMNode {
    /**
     * Elements can be created with a string provided, which becomes the
     * tag name
     */
    public function __construct($arg) {
        if (is_string($arg)) {
            $arg = new \DOMElement($arg);
        }
        parent::__construct($arg);
    }
}