<?php 
    // 此处填写你在控制台-应用管理-创建应用后获取的AK
    $ak = '您的AK';
    
    // 发起一个http get请求，并返回请求的结果
    // $url字段为请求的地址
    // $param字段为请求的参数
    function request_get($url = '', $param = array()) {
        if (empty($url) || empty($param)) {
            return false;
        }
        
        $getUrl = $url . "?" . http_build_query($param);
        $curl = curl_init(); // 初始化curl
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false); // 跳过证书检查   
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2); // 从证书中检查SSL加密算法是否存在
        curl_setopt($curl, CURLOPT_URL, $getUrl); // 抓取指定网页
        curl_setopt($curl, CURLOPT_TIMEOUT, 1000); // 设置超时时间1秒
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // curl不直接输出到屏幕
        curl_setopt($curl, CURLOPT_HEADER, 0); // 设置header
        $data = curl_exec($curl); // 运行curl

        if (!$data) {
            print("an error occured in function request_get(): " . curl_error($curl) . "\n");
        }

        curl_close($curl);
        
        return $data;
    }

    // 请求地址
    $url = 'https://api.map.baidu.com/logistics_direction/v1/truck';
    
    // 构造请求参数
    $param['origin']   = '22.673186,114.065699';
    $param['destination']   = '22.6721,114.068886';
    $param['height']   = '1.8';
    $param['width']   = '1.9';
    $param['weight']   = '2.5';
    $param['length']   = '4.2';
    $param['axle_weight']   = '2';
    $param['axle_count']   = '2';
    $param['is_trailer']   = '0';
    $param['plate_province']   = '';
    $param['plate_number']   = '';
    $param['plate_color']   = '0';
    $param['ak']   = $ak;

    $res = request_get($url, $param);

    // 将原始返回的结果打印出来
    print("请求的原始返回结果为:\n");
    print($res . "\n");
?>

{
    "status": 0,
    "message": "ok",
    "result": {
      "restriction": {
        "type": "0",
        "info": ""
      },
      "total": 1,
      "routes": [
        {
          "origin": {
            "lng": 114.06571601088974,
            "lat": 22.67317578337568
          },
          "destination": {
            "lng": 114.06883474382559,
            "lat": 22.672117710702736
          },
          "tag": "默认",
          "distance": 880,
          "duration": 450,
          "steps": [
            {
              "leg_index": 0,
              "direction": 7,
              "distance": 268,
              "road_name": "清祥路",
              "road_type": 4,
              "start_location": {
                "lng": 114.06571601088974,
                "lat": 22.67317578337568
              },
              "end_location": {
                "lng": 114.06498411443144,
                "lat": 22.67095626741058
              },
              "path": "114.065716,22.6731758;114.065506,22.6726359;114.065435,22.6724659;114.065385,22.672326;114.065235,22.6718961;114.065225,22.6718661;114.065175,22.6717461;114.065034,22.6713463;114.064934,22.6711064;114.064894,22.6709864;114.064984,22.6709563",
              "traffic_condition": [
                {
                  "status": 1,
                  "geo_cnt": 8,
                  "distance": 245
                },
                {
                  "status": 2,
                  "geo_cnt": 2,
                  "distance": 23
                }
              ],
              "restrictions": [
                {}
              ],
              "duration": 279,
              "adcodes": "440309,440307"
            },
            {
              "leg_index": 0,
              "direction": 4,
              "distance": 187,
              "road_name": "环城路",
              "road_type": 3,
              "start_location": {
                "lng": 114.06498411443144,
                "lat": 22.67095626741058
              },
              "end_location": {
                "lng": 114.06647375599361,
                "lat": 22.67014499432073
              },
              "path": "114.064984,22.6709563;114.065264,22.6708159;114.065964,22.6704152;114.066284,22.670165;114.066414,22.670075;114.066474,22.670145",
              "traffic_condition": [
                {
                  "status": 2,
                  "geo_cnt": 5,
                  "distance": 187
                }
              ],
              "restrictions": [
                {}
              ],
              "duration": 104,
              "adcodes": "440307"
            },
            {
              "leg_index": 0,
              "direction": 1,
              "distance": 268,
              "road_name": "五和大道",
              "road_type": 3,
              "start_location": {
                "lng": 114.06647375599361,
                "lat": 22.67014499432073
              },
              "end_location": {
                "lng": 114.06812492008547,
                "lat": 22.672016417426942
              },
              "path": "114.066474,22.670145;114.066664,22.670365;114.067394,22.6712055;114.068095,22.6719964;114.068125,22.6720164",
              "traffic_condition": [
                {
                  "status": 1,
                  "geo_cnt": 4,
                  "distance": 268
                }
              ],
              "restrictions": [
                {}
              ],
              "duration": 36,
              "adcodes": "440307"
            },
            {
              "leg_index": 0,
              "direction": 4,
              "distance": 112,
              "road_name": "",
              "road_type": 6,
              "start_location": {
                "lng": 114.06812492008547,
                "lat": 22.672016417426942
              },
              "end_location": {
                "lng": 114.06910443577772,
                "lat": 22.671878283021133
              },
              "path": "114.068125,22.6720164;114.068215,22.6719865;114.068974,22.671758;114.069104,22.6718783",
              "traffic_condition": [
                {
                  "status": 0,
                  "geo_cnt": 3,
                  "distance": 112
                }
              ],
              "restrictions": [
                {}
              ],
              "duration": 16,
              "adcodes": "440307"
            },
            {
              "leg_index": 0,
              "direction": 11,
              "distance": 45,
              "road_name": "",
              "road_type": 6,
              "start_location": {
                "lng": 114.06910443577772,
                "lat": 22.671878283021133
              },
              "end_location": {
                "lng": 114.06883474382559,
                "lat": 22.672117710702736
              },
              "path": "114.069104,22.6718783;114.068875,22.6720178;114.068815,22.6720877;114.068835,22.6721177",
              "traffic_condition": [
                {
                  "status": 0,
                  "geo_cnt": 3,
                  "distance": 45
                }
              ],
              "restrictions": [
                {}
              ],
              "duration": 6,
              "adcodes": "440307"
            }
          ],
          "oil_cost": 0.46,
          "track_idx": -1,
          "unavoid_polygons_idx": "",
          "traffic_light_num": 2
        }
      ],
      "routesinfo_ext": "eyJzZXNzaW9uX2lkIjoiIiwibG9jIjoibmoiLCJ0cmFja3B0c19kaXN0YW5jZXMiOls4ODBdfQ"
    }
  }