UserDataMap.php

public function getUsersByCity($cityId, $from = 0, $count = -1){

		$sql = <<<SQL
select
	user.*
from
	     pn_users      user
	join pn_users_info info on (info.id = user.userInfo)
where
	info.cityId = :cityId
order by
	user.rating desc
SQL;

		return MMC::getSet(md5(__METHOD__ . serialize(func_get_args())),strtotime('+1 month'),function() use($sql,$cityId,$from,$count){
			return $this->fetchAll($sql . $this->getLimitString($from, $count),
				[':cityId' => $cityId]
			);
		});