phpredis扩展实现LBS距离计算和范围筛选

来源

public function geo(){
        $redis = new 
edis();
        $redis -> connect('127.0.0.1',6379);
        //位置增加
        $res=   $redis->geoAdd("cs",13.361389,38.115556,'peter',13.361389,38.125566,'peter1');
        //位置获取
        $redis->geoPos("cs",'peter');
        //两点之间的距离
         $redis->geoDist("cs",'peter','peter1','m');
        //范围查询:200m内的坐标点
        $potion=['WITHHASH','count'=>2,'ASC'];//空字符串 返回key,WITHCOORD 返回key和经纬度 WITHHASH 返回key和距离 count返回几条 ASC和DESC降序和升序
       
        return  $redis->geoRadius("cs",13.361389,38.115556,'200','m',$potion); //m 米 km千米
    }