Detailed explanation of how to use curl in php_PHP tutorial

I have talked about curl in php before. I will share with you my experience in learning how to use curl in php. I hope this will be helpful to everyone.

The work I did in the past two days used curl

When the URL to be requested is not on the same server as yourself, you cannot access it directly

In this case, it is best to use curl. It can simulate post requests to do some things, which is simple and convenient

The following is a record of the accumulation during use

curl_close($curl); #Close CURL session Return $return;

The code is as follows

代码如下

复制代码

/* 远程post请求 */ function getRemoteUrl($get_url) {     $curl = curl_init();#启动一个CURL会话     curl_setopt($curl, CURLOPT_URL, $get_url);#设置一个Url     curl_setopt($curl, CURLOPT_POST, true);#发送一个常规的Post请求     curl_setopt($curl, CURLOPT_TIMEOUT, 30);#设置超时限制防止死循环     curl_setopt($curl, CURLOPT_HEADER, 0);#显示返回的Header区域内容     curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);#获取的信息以文件流的形式返回     $return = curl_exec($curl); #执行操作     if (curl_errno($curl)) {         return false;     }     curl_close($curl); #关闭CURL会话     return $return; } function getCurlData($url) {     $curl = curl_init();     curl_setopt($curl, CURLOPT_URL, $url);     curl_setopt($curl, CURLOPT_HEADER, false);     curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);     curl_setopt($curl, CURLOPT_TIMEOUT, 10);     $result = curl_exec($curl);     curl_close($curl);     return $result; }

Copy code

/*
Remote post request
*/
function getRemoteUrl($get_url) {
$curl = curl_init();#Start a CURL session

curl_setopt($curl, CURLOPT_URL, $get_url);#Set a Url

curl_setopt($curl, CURLOPT_POST, true);#Send a regular Post request

curl_setopt($curl, CURLOPT_TIMEOUT, 30);#Set timeout limit to prevent infinite loop

curl_setopt($curl, CURLOPT_HEADER, 0);#Display the returned Header area content

curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);#The obtained information is returned in the form of a file stream

$return = curl_exec($curl); #Execute operation

If (curl_errno($curl)) {

         return false;

}

}

function getCurlData($url) {

$curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_HEADER, false); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); curl_setopt($curl, CURLOPT_TIMEOUT, 10); $result = curl_exec($curl); curl_close($curl); Return $result; }

To summarize the curl method: Initialize curl first

Use curl_setopt to set the target url, and other options

curl_exec, execute curl After execution, close curl The last step is to output curl() is very efficient and supports multi-threading, but it needs to enable curl extension. The following are the steps to enable curl extension: 1. Copy the three files php_curl.dll, libeay32.dll, ssleay32.dll under the PHP folder to system32; 2. Remove the semicolon in extension=php_curl.dll in php.ini (c:WINDOWS directory); 3. Restart apache or IIS http://www.bkjia.com/PHPjc/628613.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/628613.htmlTechArticleI have talked about curl in php before, so let me learn about php curl. I would like to share my experience with you, I hope this will be helpful to you. The work done in the past two days...