PHP sends requests to other servers through curl and returns data (code example)

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In many cases, we need to request a third-party server to obtain some data, such as tokens, such as Baidu's active push. So how does our PHP make requests to the third-party server? We can achieve this through curl

First define the requested url, then create the httpHeader header, and define the parameters for sending the request through post:

Initialize curl:

$url="URL地址";
//然后创建httpHeader的头：
$httpHeader=createHttpHeader();
//定义通过post方式发送请求的参数：
$curlPost="userId=".$userId."&name=".$nickName."&portraitUri=".$headImg;
//初始化curl：
$ch=curl_init();undefined

Send request:

curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_HTTPHEADER,$httpHeader);
curl_setopt($ch,CURLOPT_HEADER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_POST,1);
curl_setopt($ch,CURLOPT_POSTFIELDS,$curlPost);
curl_setopt($ch,CURLOPT_TIMEOUT,30);
curl_setopt($ch,CURLOPT_DNS_USE_GLOBAL_CACHE,false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);undefined

Receive the returned data: $data=curl_exec($ ch); Close curl: curl_close($ch); In this way, a post request is completed through curl and the returned data is obtained.

The complete PHP source code is as follows:

$url="请求的URL地址";
$httpHeader=createHttpHeader();
$curlPost="userId=".$userId."&name=".$nickName."&portraitUri=".$headImg;
$ch=curl_init();
curl_setopt($ch,CURLOPT_URL,$url);
curl_setopt($ch,CURLOPT_HTTPHEADER,$httpHeader);
curl_setopt($ch,CURLOPT_HEADER,false);
curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
curl_setopt($ch,CURLOPT_POST,1);
curl_setopt($ch,CURLOPT_POSTFIELDS,$curlPost);
curl_setopt($ch,CURLOPT_TIMEOUT,30);
curl_setopt($ch,CURLOPT_DNS_USE_GLOBAL_CACHE,false);
curl_setopt($ch,CURLOPT_RETURNTRANSFER,true);
$data=curl_exec($ch);
curl_close($ch);undefined

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