PHP curl collects remote page content demo code_PHP tutorial

There are many functions in PHP that can collect remote pages. For example, file_get_contents(), fopen, file(), these functions can collect remote server data, but curl is the best for performance. It supports multi-threading. ​

Example

The code is as follows

Copy code

代码如下

复制代码

$curlPost = 'a=1&b=2';//模拟POST数据 $ch = curl_init(); curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:0.0.0.0', 'CLIENT-IP:0.0.0.0'));  //构造IP curl_setopt($ch, CURLOPT_REFERER, "http://www.bkjia.com/");   //构造来路 curl_setopt($ch,CURLOPT_URL, 'http://www.bkjia.com');//需要抓取的页面路径 curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1); curl_setopt ($ch, CURLOPT_TIMEOUT, 30); curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);//post值 $file_contents = curl_exec($ch);//抓取的内容放在变量中 curl_close($ch)

$curlPost = 'a=1&b=2';//Simulate POST data

$ch = curl_init();

curl_setopt($ch, CURLOPT_HTTPHEADER, array('X-FORWARDED-FOR:0.0.0.0', 'CLIENT-IP:0.0.0.0')); //Construct IP

curl_setopt($ch, CURLOPT_REFERER, "http://www.bkjia.com/"); //Construction origin

curl_setopt($ch,CURLOPT_URL, 'http://www.bkjia.com');//Page path to be crawled

curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);

curl_setopt ($ch, CURLOPT_TIMEOUT, 30);

curl_setopt($ch, CURLOPT_POSTFIELDS, $curlPost);//post value

$file_contents = curl_exec($ch);//The captured content is placed in variables
curl_close($ch)

Another way is to use the file_get_contents() remote file acquisition function to obtain the remote page content

Notes

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/445611.html

www.bkjia.com

true

http: //www.bkjia.com/PHPjc/445611.htmlTechArticleThere are many functions that can collect remote pages in php, such as file_get_contents(), fopen, file(), etc. All functions can collect remote server data, but curl is the best for performance. It supports...