<?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/place/v2/search';
    
    // 构造请求参数
    $param['query']   = '银行';
    $param['location']   = '39.915,116.404';
    $param['radius']   = '2000';
    $param['output']   = 'json';
    $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_type": "poi_type",
  "results": [
    {
      "name": "原麦加利银行",
      "location": {
        "lat": 39.908609,
        "lng": 116.406868
      },
      "address": "北京市东城区东交民巷39号",
      "province": "北京市",
      "city": "北京市",
      "area": "东城区",
      "detail": 0,
      "uid": "2bbad00161fcd2c488b9886e"
    },
    {
      "name": "中国民生银行(北京正义路支行)",
      "location": {
        "lat": 39.915492,
        "lng": 116.413403
      },
      "address": "北京市东城区南河沿大街109号",
      "province": "北京市",
      "city": "北京市",
      "area": "东城区",
      "telephone": "(010)65284468",
      "detail": 0,
      "uid": "14cf81e3aae18d1914948ebb"
    },
    {
      "name": "西交民巷近代银行建筑群",
      "location": {
        "lat": 39.908018,
        "lng": 116.398341
      },
      "address": "北京市西城区西交民巷56号",
      "province": "北京市",
      "city": "北京市",
      "area": "西城区",
      "detail": 0,
      "uid": "4eea5ab87122e5673913fd73"
    },
    {
      "name": "北京银行(前门文创支行)",
      "location": {
        "lat": 39.906034,
        "lng": 116.401313
      },
      "address": "北京市西城区前门西大街正阳市场西区1号楼",
      "province": "北京市",
      "city": "北京市",
      "area": "西城区",
      "telephone": "(010)63048577",
      "detail": 0,
      "uid": "be2d09340d0b5c0035b06c31"
    },
    {
      "name": "北京银行24小时自助银行服务",
      "location": {
        "lat": 39.906015,
        "lng": 116.401328
      },
      "address": "前门西大街正阳市场1号",
      "province": "北京市",
      "city": "北京市",
      "area": "西城区",
      "detail": 0,
      "uid": "b8e797b2ccc5db8ccb2915f0"
    },
    {
      "name": "中国工商银行(北京王府井东华门支行)",
      "location": {
        "lat": 39.921361,
        "lng": 116.411452
      },
      "address": "北京市东城区东华门大街20号",
      "province": "北京市",
      "city": "北京市",
      "area": "东城区",
      "telephone": "(010)65125921",
      "detail": 0,
      "uid": "1d19b31063fc320183a00ca8"
    },
    {
      "name": "北京银行文化创客中心",
      "location": {
        "lat": 39.906005,
        "lng": 116.401277
      },
      "address": "北京市西城区前门西大街正阳市场1号楼北京银行前门支行2层",
      "province": "北京市",
      "city": "北京市",
      "area": "西城区",
      "detail": 0,
      "uid": "05b5f25c148d7985b64f543c"
    },
    {
      "name": "中国工商银行(北京正阳门支行)",
      "location": {
        "lat": 39.90649,
        "lng": 116.40944
      },
      "address": "北京市东城区前门东大街16号",
      "province": "北京市",
      "city": "北京市",
      "area": "东城区",
      "telephone": "(010)67015791,(010)67016132",
      "detail": 0,
      "uid": "befdb2928aad85e186154199"
    },
    {
      "name": "中国工商银行24小时自助银行(北京正阳门支行)",
      "location": {
        "lat": 39.906503,
        "lng": 116.409473
      },
      "address": "北京市东城区前门东大街16号",
      "province": "北京市",
      "city": "北京市",
      "area": "东城区",
      "detail": 0,
      "uid": "e6c265d1a03a8955d813189e"
    },
    {
      "name": "中国工商银行离行式自助服务区(北京分行珠市口支行前门西大街)",
      "location": {
        "lat": 39.9072,
        "lng": 116.396818
      },
      "address": "北京市西城区前门西大街41号",
      "province": "北京市",
      "city": "北京市",
      "area": "西城区",
      "detail": 0,
      "uid": "7648c1b08a9301ba3904b15c"
    }
  ]
}