Description:
------------
You're missing a very handful feature and it's pretty annoying to make a workaround which cannot perform exactly what I need until PHP is fixed.

Reproduce code:
---------------
This is my crappy workaround for the missing Dom->importString(), however the support in DOM should be made.

        /**
	 * Import a string like something<br /><strong>strong</strong> into the DomDocument
	 *
	 * @param  string     string
	 * @param  DomElement parent
	 * @return DomElement reference to imported node
	 */
	public function importString($string, $parent) {
	    if ($parent === NULL) {
	        throw new Exception('Parent cannot be NULL.');
	    }
	    
	    $tmp = new DomDocument('1.0', 'utf-8');
	    
	    // The div is unwanted here, but loadXml doesn't work without it
	    $tmp->loadXml('<div>' . $string . '</div>');
	    return $this->domImportNode($tmp->firstChild);
	}

Actual result:
--------------
PHP DOM doesn't provide any similar functionaly, although it's needed.