几种实现经纬度查询排序

--
-- 表的结构 `ts_brand_store`
--

CREATE TABLE IF NOT EXISTS `ts_brand_store` (
  `sid` int(11) unsigned NOT NULL,
  `store_name` char(200) NOT NULL COMMENT '门店名称',
  `introduction` text NOT NULL COMMENT '简介',
  `store_id` int(11) unsigned NOT NULL COMMENT '关联的邻铺store_id',
  `uid` int(11) unsigned NOT NULL COMMENT '所属用户UID',
  `logo` int(11) unsigned NOT NULL COMMENT 'logo附件ID',
  `tel` varchar(100) NOT NULL COMMENT '联系电话',
  `province` int(11) NOT NULL COMMENT '所在省ID',
  `city` int(11) NOT NULL COMMENT '所在市ID',
  `area` int(11) NOT NULL COMMENT '所在区县ID',
  `address` varchar(100) NOT NULL COMMENT '门店地址',
  `last_latitude` float(10,6) NOT NULL COMMENT 'last_latitude',
  `last_longitude` float(10,6) NOT NULL COMMENT '实体店纬度',
  `photo_attach_ids` varchar(100) NOT NULL COMMENT '门店图片附件id集合',
  `verify` tinyint(3) NOT NULL COMMENT '门店审核 1通过，0平台拒绝,-1品牌商拒绝，10平台审核中,20品牌商审核中',
  `verifyremark` varchar(50) NOT NULL COMMENT '拒绝理由',
  `ctime` int(11) NOT NULL COMMENT '发布时间'
) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8 COMMENT='门店表';

　　

		$last_latitude = floatval($this->data['last_latitude']);
		$last_longitude = floatval($this->data['last_longitude']);
		if(!$last_latitude || !$last_longitude) {
			return $this->error("请开启定位服务");
		}
		$weiba_id = intval($this->data['weiba_id']);  //圈子id
		if($weiba_id == 0) {
			return $this->error("丢失重要参数");
		}
		$page = $this->data['weiba_id'] ?:1;
		
		$map['weiba_id'] = $weiba_id ;
		$map['status'] = 1 ;
		$map['verify'] = 1 ;
		$relation_weiba = M('brand_store_relation')->where($map)->field('sid')->select();
		$sids = getSubByKey($relation_weiba, 'sid');
		if(empty($sids)){
			return $this->success(array('data'=>array()));
		}
		
		$R = 6371.393;//地球半径
		$distanceSql = '( '.$R.' * acos( cos( radians('.$last_latitude.') ) * cos( radians( last_latitude ) ) * cos( radians( last_longitude ) - radians('.$last_longitude.') ) + sin( radians('.$last_latitude.') ) * sin( radians( last_latitude ) ) ) )';
		$field = '`sid`, `store_name`,`logo`, `province`, `city`, `area`, `last_latitude`, `last_longitude`, '.$distanceSql.' AS `distance`';
		$data['list'] = M('brand_store')->where(array('sid'=>array('IN', $sids)))->order('`distance` ASC')->field($field)->select();
		
		
		return $this->success($data);