根据当前经纬度返回最近店铺距离
$lng = input('lng'); 123开头
$lat = input('lat'); 41~
$lists = Db::query("SELECT *,SQRT( POW(111.2 * (lat - ?), 2) +
POW(111.2 * (? - lon) * COS(lat / 57.3), 2)) AS distance FROM car_shop HAVING shop_type like '%3%' and hide=1 and auditing=1 and balance is not null ORDER BY distance,star_level desc limit 3 ",[$lat,$lon]);
