```php <?php // Geohash // @url: http://blog.jobbole.com/80633/ /** *求兩個已知經緯度之間的距離,單位為米 *@param lng1,lng2 經度 *@param lat1,lat2 緯度 *@return float 距離，單位米 **/ function getdistance($lng1,$lat1,$lng2,$lat2){ //將角度轉為狐度 $radLat1=deg2rad($lat1);//deg2rad()函數將角度轉換為弧度 $radLat2=deg2rad($lat2); $radLng1=deg2rad($lng1); $radLng2=deg2rad($lng2); $a=$radLat1-$radLat2; $b=$radLng1-$radLng2; $s=2*asin(sqrt(pow(sin($a/2),2)+cos($radLat1)*cos($radLat2)*pow(sin($b/2),2)))*6378.137*1000; return intval($s); } function distanceConvert($s){ $s = intval($s); if($s <= 0){ return '附近'; }elseif($s > 0 && $s <= 1000){ return $s.'m'; }elseif($s > 1000 && $s <= 2000){ return '<2km'; }elseif($s > 2000 && $s <= 3000){ return '<3km'; }elseif($s > 3000 && $s <= 4000){ return '<4km'; }elseif($s > 4000 && $s <= 5000){ return '<5km'; }elseif($s > 5000){ return '>5km'; } } /** * 根據條件獲取商戶列表 * @param string $lng * @param string $lat * @param string $city_id * @param string $district_id * @param string $type_id * @param string $search * @return mixed */ //如果存在經緯度則考慮范圍5公里內數據，如果不存在經緯度，則不考慮 public function GetShopList($navigationId = 0,$page = 1,$size =10 ,$lng = '', $lat ='', $city_id = '',$district_id = '',$type_id = '',$search = '') { $field = 'id,province_id,city_id,district_id,navigation_id,type_id,name,phone,address,logo,stime,etime,rule,activity,discount,latitude,longitude,status,token,sort,description,gmt_created'; $where = array( 'is_deleted' => 0, 'is_show' => 1, 'navigation_id'=>$navigationId, ); //判斷城市，縣區，分類是否存在 if(!empty($city_id)){ $where['city_id|province_id'] = $city_id; } if(!empty($district_id)){ $where['district_id'] = $district_id; } if(!empty($type_id)){ $where['type_id'] = $type_id; } if(!empty($search)){ $where['name'] = array('like',"%{$search}%"); } $offset = ($page * $size) - ($size - 1); //如果存在經緯度，就根據經緯度查詢5公里范圍內數據 if(!empty($lng) && !empty($lat)) { // //求出半徑 // $radius = 5;//半徑范圍，單位km // $rangeLat = 180 / pi() * $radius / 6372.797;//緯度范圍 // $rangeLng = $rangeLat / cos($lat * pi() / 180.0); //經度范圍 // $maxLat = $lat + $rangeLat; //x1 // $minLat = $lat - $rangeLat; //x0 // $maxLng = $lng + $rangeLng; //y1 // $minLng = $lng - $rangeLng; //y0 // // $where['latitude'] = array(array('lt',$maxLat),array('gt',$minLat)); // $where['longitude'] = array(array('lt',$maxLng),array('gt',$minLng)); $list = $this->where($where)->field($field)->order("abs(longitude - {$lng}) + abs(latitude - {$lat})")->limit($offset,$size)->select(); }else{ $list = $this->where($where)->field($field)->order('sort asc')->limit($offset,$size)->select(); } //記錄錯誤日志 if ($list === false) { wLog('GetShopList error! sql:' . $this->getLastSql(), $this->errorFile); wLog('GetShopList error! errorInfo:' . $this->error, $this->errorFile); } //wLog('GetShopList sql:' . $this->getLastSql(), $this->errorFile); return $list; } ```