<?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/direction/v2/riding';
    
    // 构造请求参数
    $param['origin']   = '40.01116,116.339303';
    $param['destination']   = '39.936404,116.452562';
    $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",
    "info": {
      "copyright": {
        "text": "@2023 Baidu - Data",
        "imageUrl": "http://api.map.baidu.com/images/copyright_logo.png"
      }
    },
    "type": 2,
    "result": {
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          "restrictions_status": 0,
          "restrictions_info": "",
          "distance": 17279,
          "duration": 5969,
          "steps": [
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              "leg_index": 0,
              "area": 0,
              "direction": 176,
              "distance": 200,
              "duration": 60,
              "instructions": "骑行200米",
              "name": "",
              "path": "116.339966,40.011176;116.340006,40.010546;116.340017,40.010166;116.340067,40.009366",
              "pois": [],
              "type": 5,
              "turn_type": "左转",
              "restrictions_info": "",
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                "lat": 40.011176482433
              },
              "stepDestinationLocation": {
                "lng": 116.34006725922,
                "lat": 40.009366288399
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              "stepOriginInstruction": "",
              "stepDestinationInstruction": "",
              "restrictions_status": 0,
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                  "attr": 0
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                  "attr": 0
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              ]
            },
            {
              "leg_index": 0,
              "area": 0,
              "direction": 88,
              "distance": 299,
              "duration": 90,
              "instructions": "骑行300米",
              "name": "",
              "path": "116.340067,40.009366;116.340518,40.009374;116.340739,40.009372;116.340909,40.009361;116.341881,40.009327;116.342381,40.009305;116.342491,40.009294;116.343333,40.009311;116.343513,40.009311;116.343613,40.009320",
              "pois": [],
              "type": 5,
              "turn_type": "右转",
              "restrictions_info": "",
              "stepOriginLocation": {
                "lng": 116.34006725922,
                "lat": 40.009366288399
              },
              "stepDestinationLocation": {
                "lng": 116.34363312949,
                "lat": 40.008820305313
              },
              "stepOriginInstruction": "",
              "stepDestinationInstruction": "",
              "restrictions_status": 0,
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              ]
            },
            {
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              "direction": 176,
              "distance": 353,
              "duration": 106,
              "instructions": "<b>荷清路</b>,骑行350米",
              "name": "荷清路",
              "path": "116.343613,40.009320;116.343633,40.008820;116.343653,40.008250;116.343674,40.007590;116.343694,40.007100;116.343694,40.007050;116.343745,40.006151",
              "pois": [],
              "type": 5,
              "turn_type": "未知",
              "restrictions_info": "",
              "stepOriginLocation": {
                "lng": 116.34361279144,
                "lat": 40.009320252832
              },
              "stepDestinationLocation": {
                "lng": 116.34374476108,
                "lat": 40.006150523117
              },
              "stepOriginInstruction": "",
              "stepDestinationInstruction": "",
              "restrictions_status": 0,
              "links": [
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                  "attr": 0
                },
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              ]
            },
            {
              "leg_index": 0,
              "area": 0,
              "direction": 134,
              "distance": 2797,
              "duration": 847,
              "instructions": "<b>清华东路</b>,骑行2.8公里",
              "name": "清华东路",
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              "type": 5,
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                "lat": 40.006150523117
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                "lat": 40.007460795993
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              "stepDestinationInstruction": "",
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            {
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              "duration": 23,
              "instructions": "<b>G6辅路</b>,骑行80米",
              "name": "G6辅路",
              "path": "116.383247,39.995418;116.383257,39.995358;116.383257,39.995338;116.383297,39.995279;116.383357,39.995150;116.383436,39.995011;116.383466,39.994941;116.383506,39.994882;116.383565,39.994783",
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              "restrictions_status": 0,
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              "distance": 1402,
              "duration": 424,
              "instructions": "<b>G6辅路</b>,骑行1.4公里",
              "name": "G6辅路",
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