public static function check($name)
 {
     wfProfileIn(__METHOD__);
     static $titles = array();
     if (!isset($titles[$name])) {
         global $wgMemc, $wgBadImageCache;
         $res = $wgMemc->get(BadImageList::key($name));
         if ($res && $wgBadImageCache) {
             $titles[$name] = $res == 'yes';
         } else {
             $titles[$name] = BadImageList::checkReal($name);
             BadImageList::cache($name, $titles[$name]);
         }
     }
     wfProfileOut(__METHOD__);
     return $titles[$name];
 }