static function readObjectCache(Parser &$parser, $key = '') {
	    $parser->disableCache ();

	    $cache = \ObjectCache::getInstance(CACHE_DB);
	    
	    global $wgDIQAAllowedObjectCacheKeys;
	    if (!isset($wgDIQAAllowedObjectCacheKeys) 
	    	|| !in_array($key, $wgDIQAAllowedObjectCacheKeys)) {
	    	return 'not-allowed-to-access';
	    }
	    
		$value = $cache->get($key);
	    if (is_array($value)) {
	    	return "$key is an array";
	    }	    
	    if (is_object($value)) {
	    	return "$key is an object";
	    }
	    
		return array((string)$value, 'noparse' => true);
	}