php 如何通过代理使用 CURL？

How to use CURL via a proxy?

提问by user586011

I am looking to set curl to use a proxy server. The url is provided by an html form, which has not been a problem. Without the proxy it works fine. I have found code on this and other sites, but they do not work. Any help in finding the correct solution would be much appreciated. I feel that the bellow are close, but that I am missing something. Thank You.

我希望将 curl 设置为使用代理服务器。url是由html表单提供的，一直没有问题。没有代理它工作正常。我在这个网站和其他网站上找到了代码，但它们不起作用。任何帮助找到正确的解决方案将不胜感激。我觉得波纹管很近，但我错过了一些东西。谢谢你。

The bellow code I adapted from here http://www.webmasterworld.com/forum88/10572.htmbut it returns an error message about a missing T_VARIABLE on line 12.

我从这里改编的波纹管代码http://www.webmasterworld.com/forum88/10572.htm但它返回关于第 12 行缺少 T_VARIABLE 的错误消息。

<?

$url = '$_POST[1]';
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 0);
curl_setopt($ch, CURLOPT_PROXY, '66.96.200.39:80');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,'GET');
curl_setopt ($ch, CURLOPT_HEADER, 1)
curl_exec ($ch); 
$curl_info = curl_getinfo($ch);
curl_close($ch);
echo '<br />';
print_r($curl_info);
?>

The bellow is from curl through proxy returns no content

下面是从curl 通过代理返回没有内容

<?

$proxy = "66.96.200.39:80";
$proxy = explode(':', $proxy);
$url = "$_POST[1]";

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_PROXY, $proxy[0]);
curl_setopt($ch, CURLOPT_PROXYPORT, $proxy[1]);
curl_setopt($ch, CURLOPT_HEADER, 1);

$exec = curl_exec($ch);

echo curl_error($ch);
print_r(curl_getinfo($ch));
echo $exec;
?>

is currently live on pelican-cement.com but also does not work.

目前在 pelican-cement.com 上直播，但也不起作用。

UPDATE: Thank you for all your help, I made the above changes. Now it only returns a blank screen.

更新：感谢您的帮助，我进行了上述更改。现在它只返回一个空白屏幕。

<?

$url = $_POST['1'];
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 0);
curl_setopt($ch, CURLOPT_PROXY, '66.96.200.39:80');
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST,'GET');
curl_setopt ($ch, CURLOPT_HEADER, 1);
curl_exec ($ch); 
$curl_scraped_page = curl_exec($ch);
curl_close($ch);

echo $curl_scraped_page;
?> 

回答by GravyCode

Here is a working version with your bugs removed.

这是一个删除了错误的工作版本。

$url = 'http://dynupdate.no-ip.com/ip.php';
$proxy = '127.0.0.1:8888';
//$proxyauth = 'user:password';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL,$url);
curl_setopt($ch, CURLOPT_PROXY, $proxy);
//curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyauth);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_HEADER, 1);
$curl_scraped_page = curl_exec($ch);
curl_close($ch);

echo $curl_scraped_page;

I have added CURLOPT_PROXYUSERPWDin case any of your proxies require a user name and password. I set CURLOPT_RETURNTRANSFERto 1, so that the data will be returned to $curl_scraped_pagevariable.

我添加CURLOPT_PROXYUSERPWD了以防您的任何代理需要用户名和密码。我设置CURLOPT_RETURNTRANSFER为1，以便将数据返回到$curl_scraped_page变量。

I removed a second extra curl_exec($ch);which would stop the variable being returned. I consolidated your proxy IP and port into one setting.

我删除了第二个额外的东西curl_exec($ch);，这将停止返回变量。我将您的代理 IP 和端口合并为一个设置。

I also removed CURLOPT_HTTPPROXYTUNNELand CURLOPT_CUSTOMREQUESTas it was the default.

我也删除了CURLOPT_HTTPPROXYTUNNEL，CURLOPT_CUSTOMREQUEST因为它是默认的。

If you don't want the headers returned, comment out CURLOPT_HEADER.

如果您不想返回标头，请注释掉CURLOPT_HEADER.

To disable the proxy simply set it to null.

要禁用代理，只需将其设置为 null。

curl_setopt($ch, CURLOPT_PROXY, null);

Any questions feel free to ask, I work with cURLevery day.

有任何问题随时问，我cURL每天都在工作。

回答by Somnath Muluk

I have explained use of various CURL options required for CURL PROXY.

我已经解释了 CURL PROXY 所需的各种 CURL 选项的使用。

$url = 'http://dynupdate.no-ip.com/ip.php';
$proxy = '127.0.0.1:8888';
$proxyauth = 'user:password';

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);         // URL for CURL call
curl_setopt($ch, CURLOPT_PROXY, $proxy);     // PROXY details with port
curl_setopt($ch, CURLOPT_PROXYUSERPWD, $proxyauth);   // Use if proxy have username and password
curl_setopt($ch, CURLOPT_PROXYTYPE, CURLPROXY_SOCKS5); // If expected to call with specific PROXY type
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, 1);  // If url has redirects then go to the final redirected URL.
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);  // Do not outputting it out directly on screen.
curl_setopt($ch, CURLOPT_HEADER, 1);   // If you want Header information of response else make 0
$curl_scraped_page = curl_exec($ch);
curl_close($ch);

echo $curl_scraped_page;

回答by hammad1238

Here is a well tested function which i used for my projects with detailed self explanatory comments

这是一个经过良好测试的功能，我用于我的项目，并带有详细的自我解释性评论

---

---

There are many times when the ports other than 80 are blocked by server firewall so the code appears to be working fine on localhost but not on the server

有很多次 80 以外的端口被服务器防火墙阻止，因此代码在本地主机上运行良好，但在服务器上运行不正常

function get_page($url){

global $proxy;
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
//curl_setopt($ch, CURLOPT_PROXY, $proxy);
curl_setopt($ch, CURLOPT_HEADER, 0); // return headers 0 no 1 yes
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); // return page 1:yes
curl_setopt($ch, CURLOPT_TIMEOUT, 200); // http request timeout 20 seconds
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true); // Follow redirects, need this if the url changes
curl_setopt($ch, CURLOPT_MAXREDIRS, 2); //if http server gives redirection responce
curl_setopt($ch, CURLOPT_USERAGENT,
    "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.7) Gecko/20070914 Firefox/2.0.0.7");
curl_setopt($ch, CURLOPT_COOKIEJAR, "cookies.txt"); // cookies storage / here the changes have been made
curl_setopt($ch, CURLOPT_COOKIEFILE, "cookies.txt");
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false); // false for https
curl_setopt($ch, CURLOPT_ENCODING, "gzip"); // the page encoding

$data = curl_exec($ch); // execute the http request
curl_close($ch); // close the connection
return $data;
}