php tip: Call to undefined function curl_init_PHP tutorial

When I wanted to use the curl function for data collection, I found an error message called Call to undefined function curl_init. Later I learned from the official website that because curl is not a function enabled by PHP by default, we need to open it manually. Let me introduce to you how to enable curl. function.

Example

2. Check which directory the extension_dir value of php.ini is, and check whether there is php_curl.dll. If not, please download php_curl.dll, and then copy libeay32.dll and ssleay32.dll in the php directory to c:windowssystem32

The code is as follows

代码如下

复制代码

$ch = curl_init(); //初始化curl curl_setopt($ch, CURLOPT_URL, $url);//设置链接 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//设置是否返回信息 curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//设置HTTP头 curl_setopt($ch, CURLOPT_POST, 1);//设置为POST方式 curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_data);//POST数据 $response = curl_exec($ch);//接收返回信息 if(curl_errno($ch)){//出错则显示错误信息  print curl_error($ch); } curl_close($ch); //关闭curl链接 echo $response;//显示返回信息

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$ch = curl_init(); //Initialize curl curl_setopt($ch, CURLOPT_URL, $url);//Set link curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);//Set whether to return information

curl_setopt($ch, CURLOPT_HTTPHEADER, $header);//Set HTTP header

curl_setopt($ch, CURLOPT_POST, 1);//Set to POST mode curl_setopt($ch, CURLOPT_POSTFIELDS, $xml_data);//POST data $response = curl_exec($ch);//Receive return information

if(curl_errno($ch)){//If an error occurs, the error message will be displayed

print curl_error($ch);

}

curl_close($ch); //Close curl link

echo $response;//Display return information

The result appears

Call to undefined function curl_init

The solution is as follows:

1. Open php.ini and enable extension=php_curl.dll

There are still problems after the modification

Add in the httpd.conf file: Full path of LoadFile dynamic link library For example, php needs to extend curl here, so the solution is to add: to the httpd.conf file LoadFile d:/php/libeay32.dll LoadFile d:/php/ssleay32.dll This solves the problem

http://www.bkjia.com/PHPjc/632116.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/632116.htmlTechArticleWhen I wanted to use the curl function for data collection, I found an error saying Call to undefined function curl_init. I later learned from the official website Because curl is not a function enabled by PHP by default, we need to do it manually...