实时路况查询 | 百度地图api sdk-凯发k8官方旗舰厅

<?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
// $param字段为请求的参数
functionrequest_get($url ='', $param =array()){
if(empty($url)||empty($param)){
returnfalse;
}
        $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/traffic/v1/polygon';
// 构造请求参数
    $param['vertexes']='39.910528,116.472926;39.918276,116.475442;39.916671,116.459056;39.912078,116.464303';
    $param['coord_type_input']='gcj02';
    $param['coord_type_output']='gcj02';
    $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":"成功",
"description":"该区域整体拥堵。京包高速：北向南,从开拓路5到京新高速拥堵。京新上地桥：北向南,京新上地桥拥堵。京新高速：北向南,从京包高速到耳通百安拥堵。小营西路：西向东,上地三街附近拥堵。",
"evaluation":{
"status":3,
"status_desc":"拥堵"
},
"road_traffic":[
{
"road_name":"unknow"
},
{
"road_name":"上地三街"
},
{
"road_name":"上地三街辅路"
},
{
"road_name":"上地东路"
},
{
"road_name":"上地五街"
},
{
"road_name":"上地六街"
},
{
"road_name":"上地四街"
},
{
"congestion_sections":[
{
"congestion_distance":1870,
"speed":8.45,
"status":3,
"congestion_trend":"持平",
"section_desc":"北向南,从开拓路5到京新高速",
}
],
"road_name":"京包高速"
},
{
"congestion_sections":[
{
"congestion_distance":1610,
"speed":7.79,
"status":3,
"congestion_trend":"持平",
"section_desc":"北向南,京新上地桥",
}
],
"road_name":"京新上地桥"
},
{
"congestion_sections":[
{
"congestion_distance":1870,
"speed":8.45,
"status":3,
"congestion_trend":"持平",
"section_desc":"北向南,从京包高速到耳通百安",
}
],
"road_name":"京新高速"
},
{
"road_name":"信息路"
},
{
"road_name":"创业路"
},
{
"road_name":"安宁庄西一条"
},
{
"road_name":"安宁庄西三条"
},
{
"road_name":"安宁庄西二条"
},
{
"road_name":"安宁庄路"
},
{
"congestion_sections":[
{
"congestion_distance":760,
"speed":6.39,
"status":3,
"congestion_trend":"加重",
"section_desc":"西向东,上地三街附近",
}
],
"road_name":"小营西路"
},
{
"road_name":"小营西路辅路"
},
{
"road_name":"开拓路"
}
]
}