1

$latitude="120.215927";

        $longitude="30.25177";


2

        $latitude="120.212623";

        $longitude="30.251362";


3

        $latitude="120.14516";

        $longitude="30.238757";


1和2是1公里内


1和3是1公里外


    $latitude="120.212623";

        $longitude="30.251362";


        // $latitude="120.14516";

        // $longitude="30.238757";


        $ewei_shop_mendian = pdo_fetch("select * from " . tablename("ewei_shop_store") . " where uniacid=:uniacid and  (ACOS(SIN((".$latitude."*3.1415)/180) * SIN((lat*3.1415)/180) + COS((".$latitude."*3.1415)/180) * COS((lat*3.1415)/180) * COS((".$longitude."*3.1415)/180 - (lng*3.1415)/180))*6370.996)<=dujia_range", array(":uniacid" => $_W["uniacid"]));

        print_r(pdo_debug());

print_r($ewei_shop_mendian);

        exit();