dlh_test_server/app/api/logic/LocalStoreLogic.php

<?php

namespace app\api\logic;

use app\common\basics\Logic;
use app\common\model\LocalStore;
use think\facade\Db;

class LocalStoreLogic extends Logic
{
    public function getLocalList($data){
        $model = new LocalStore;
        $distance = "";
        $s = "";
        if(isset($data['c_name'])){
            if($data['c_name']!=""){
                $s = "and address like '%".$data['c_name']."%'";
            }
        }

        $count = $model->where('is_delete',0)
            ->where($s)
            ->count();
//        $lists = $model->where('is_delete',0)
//            ->where($s)
//            ->page($data['page'], $data['size'])
//            ->order('lstore_id desc')
//            ->select();
        $page = ($data['page_no']-1)*$data['page_size'];
        $sql = "SELECT *, ST_Distance_Sphere(POINT(".$data['longitude'].",".$data['latitude']."),POINT(longitude, latitude)) AS distance
                FROM ls_local_store where is_delete = 0 $s
                ORDER BY distance limit '".$page."','".$data['page_size']."'";
//        var_dump($sql);
        $lists = Db::query($sql);
        foreach($lists as $key=>$value){
            $lists[$key]['distance'] = $this->distance($data['latitude'], $data['longitude'], $value['latitude'], $value['longitude']);
        }
        $data = [
            'list' => $lists,
            'page' => $data['page_no'],
            'size' => $data['page_size'],
            'count' => $count,
            'more' => is_more($count, $data['page_no'], $data['page_size'])
        ];
        return $data;
    }
    function distance($lat1, $lon1, $lat2, $lon2) {
        $earthRadius = 6371000; // 地球平均半径，单位为米

        // 将经纬度转换为弧度
        $lat1 = deg2rad($lat1);
        $lon1 = deg2rad($lon1);
        $lat2 = deg2rad($lat2);
        $lon2 = deg2rad($lon2);

        // 使用haversine公式计算距离
        $diffLat = $lat2-$lat1;
        $diffLon = $lon2-$lon1;
        $a = sin($diffLat / 2) * sin($diffLat / 2) + cos($lat1) * cos($lat2) * sin($diffLon / 2) * sin($diffLon / 2);
        $c = 2 * atan2(sqrt($a), sqrt(1-$a));
        $distance = $earthRadius * $c;

        return $distance;
    }
}