blocks|key|300032|text|要使cURL遵循重定向，请使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|300033|curl_setopt($ch,+CURLOPT_FOLLOWLOCATION,+true);|code-block|syntax|javascript|300034|呃..。我不认为你真的在做卷曲...尝试：|300035|curl_exec($ch);|offset|length|style|CODE|300036|在curl_getinfo()调用之前，...after设置选项。|300037|编辑:如果你只是想找出页面重定向到哪里，我会使用建议here，然后使用Curl抓取标题并从中提取Location:+header：|300038|$ch+=+curl_init();
curl_setopt($ch,+CURLOPT_URL,+$url);
curl_setopt($ch,+CURLOPT_HEADER,+true);
curl_setopt($ch,+CURLOPT_FOLLOWLOCATION,+false);
curl_setopt($ch,+CURLOPT_RETURNTRANSFER,+true);
$result+=+curl_exec($ch);
if+(preg_match('~Location:+(.*)~i',+$result,+$match))+{
+++$location+=+trim($match[1]);
}|300039|entityMap|0|LINK|mutability|MUTABLE|url|http://zzz.rezo.net/HowTo-Expand-Short-URLs.html^0|0|0|0|0|F|0|1|E|0|Q|4|0|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|13|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|14|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|15|8|@$K|16|L|17|M|N]]|9|@]|A|$]]|$1|O|3|P|5|6|7|18|8|@$K|19|L|1A|M|N]]|9|@]|A|$]]|$1|Q|3|R|5|6|7|1B|8|@]|9|@$K|1C|L|1D|1|1E]]|A|$]]|$1|S|3|T|5|D|7|1F|8|@]|9|@]|A|$E|F]]|$1|U|3|-4|5|6|7|1G|8|@]|9|@]|A|$]]]|V|$W|$5|X|Y|Z|A|$10|11]]]]

To make cURL follow a redirect, use:

<pre><code>curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
</code></pre>

Erm... I don't think you're actually executing the curl... Try:

<code>curl_exec($ch);</code>

...after setting the options, and before the <code>curl_getinfo()</code> call.

EDIT: If you just want to find out where a page redirects to, I'd use the advice <a href="http://zzz.rezo.net/HowTo-Expand-Short-URLs.html" rel="noreferrer">here</a>, and just use Curl to grab the headers and extract the Location: header from them:

<pre><code>$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
if (preg_match('~Location: (.*)~i', $result, $match)) {
 $location = trim($match[1]);
}
</code></pre>

blocks|key|3027292|text|上面的答案在我的一台服务器上不起作用，这与basedir有关，所以我对它进行了一些重新处理。下面的代码可以在我的所有服务器上运行。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3027293|$ch+=+curl_init();
curl_setopt($ch,+CURLOPT_URL,+$url);
curl_setopt($ch,+CURLOPT_HEADER,+true);
curl_setopt($ch,+CURLOPT_FOLLOWLOCATION,+false);
curl_setopt($ch,+CURLOPT_RETURNTRANSFER,+TRUE);
$a+=+curl_exec($ch);
curl_close(+$ch+);+
//+the+returned+headers
$headers+=+explode("\n",$a);
//+if+there+is+no+redirection+this+will+be+the+final+url
$redir+=+$url;
//+loop+through+the+headers+and+check+for+a+Location:+str
$j+=+count($headers);
for($i+=+0;+$i+<+$j;+$i%2B%2B){
//+if+we+find+the+Location+header+strip+it+and+fill+the+redir+var+++++++
if(strpos($headers[$i],"Location:")+!==+false){
++++++++$redir+=+trim(str_replace("Location:","",$headers[$i]));
++++++++break;
++++}
}
//+do+whatever+you+want+with+the+result
echo+redir;|code-block|syntax|javascript|3027294|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

The answer above didn't work for me on one of my servers, something to to with basedir, so I re-hashed it a little. The code below works on all my servers.

<pre><code>$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
$a = curl_exec($ch);
curl_close( $ch ); 
// the returned headers
$headers = explode("\n",$a);
// if there is no redirection this will be the final url
$redir = $url;
// loop through the headers and check for a Location: str
$j = count($headers);
for($i = 0; $i &lt; $j; $i++){
// if we find the Location header strip it and fill the redir var 
if(strpos($headers[$i],"Location:") !== false){
 $redir = trim(str_replace("Location:","",$headers[$i]));
 break;
 }
}
// do whatever you want with the result
echo redir;
</code></pre>

blocks|key|3241463|text|这里选择的答案是不错的，但它区分大小写，不能防止相对的location:标题(一些网站确实这样做)或可能在其内容中实际包含短语Location:的页面……(+zillow目前就是这么做的)。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3241464|有点草率，但有几个快速编辑可以让它更智能一些：|3241465|function+getOriginalURL($url)+{
++++$ch+=+curl_init();
++++curl_setopt($ch,+CURLOPT_URL,+$url);
++++curl_setopt($ch,+CURLOPT_HEADER,+true);
++++curl_setopt($ch,+CURLOPT_FOLLOWLOCATION,+false);
++++curl_setopt($ch,+CURLOPT_RETURNTRANSFER,+TRUE);
++++$result+=+curl_exec($ch);
++++$httpStatus+=+curl_getinfo($ch,+CURLINFO_HTTP_CODE);
++++curl_close($ch);

++++//+if+it's+not+a+redirection+(3XX),+move+along
++++if+($httpStatus+<+300+%7C%7C+$httpStatus+>=+400)
++++++++return+$url;

++++//+look+for+a+location:+header+to+find+the+target+URL
++++if(preg_match('/location:+(.*)/i',+$result,+$r))+{
++++++++$location+=+trim($r[1]);

++++++++//+if+the+location+is+a+relative+URL,+attempt+to+make+it+absolute
++++++++if+(preg_match('/%5E\/(.*)/',+$location))+{
++++++++++++$urlParts+=+parse_url($url);
++++++++++++if+($urlParts['scheme'])
++++++++++++++++$baseURL+=+$urlParts['scheme'].'://';

++++++++++++if+($urlParts['host'])
++++++++++++++++$baseURL+.=+$urlParts['host'];

++++++++++++if+($urlParts['port'])
++++++++++++++++$baseURL+.=+':'.$urlParts['port'];

++++++++++++return+$baseURL.$location;
++++++++}

++++++++return+$location;
++++}
++++return+$url;
}|code-block|syntax|javascript|3241466|请注意，这仍然只有1个重定向深度。要深入了解，您实际上需要获取内容并遵循重定向。|3241467|entityMap^0|R|9|1R|9|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@$9|R|A|S|B|C]|$9|T|A|U|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|V|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|W|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|6|7|X|8|@]|D|@]|E|$]]|$1|O|3|-4|5|6|7|Y|8|@]|D|@]|E|$]]]|P|$]]

The chosen answer here is decent but its case sensitive, doesn't protect against relative <code>location:</code> headers (which some sites do) or pages that might actually have the phrase <code>Location:</code> in their content... (which zillow currently does).

A bit sloppy, but a couple quick edits to make this a bit smarter are:

<pre><code>function getOriginalURL($url) {
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_URL, $url);
 curl_setopt($ch, CURLOPT_HEADER, true);
 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, false);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
 $result = curl_exec($ch);
 $httpStatus = curl_getinfo($ch, CURLINFO_HTTP_CODE);
 curl_close($ch);

 // if it's not a redirection (3XX), move along
 if ($httpStatus &lt; 300 || $httpStatus &gt;= 400)
 return $url;

 // look for a location: header to find the target URL
 if(preg_match('/location: (.*)/i', $result, $r)) {
 $location = trim($r[1]);

 // if the location is a relative URL, attempt to make it absolute
 if (preg_match('/^\/(.*)/', $location)) {
 $urlParts = parse_url($url);
 if ($urlParts['scheme'])
 $baseURL = $urlParts['scheme'].'://';

 if ($urlParts['host'])
 $baseURL .= $urlParts['host'];

 if ($urlParts['port'])
 $baseURL .= ':'.$urlParts['port'];

 return $baseURL.$location;
 }

 return $location;
 }
 return $url;
}
</code></pre>

Note that this still only goes 1 redirection deep. To go deeper, you actually need to get the content and follow the redirects.

blocks|key|299541|text|有时您需要获取HTTP标头，但同时又不希望返回这些标头。**|type|unstyled|depth|inlineStyleRanges|entityRanges|data|299542|此框架使用递归处理cookie和HTTP重定向。这里的主要思想是，以避免将HTTP头返回给客户端代码。|offset|length|style|BOLD|299543|您可以在其上构建一个非常强大的curl类。添加POST功能等。|299544|<?php

class+curl+{

++static+private+$cookie_file++++++++++++=+'';
++static+private+$user_agent+++++++++++++=+'';++
++static+private+$max_redirects++++++++++=+10;++
++static+private+$followlocation_allowed+=+true;

++function+__construct()
++{
++++//+set+a+file+to+store+cookies
++++self::$cookie_file+=+'cookies.txt';

++++//+set+some+general+User+Agent
++++self::$user_agent+=+'Mozilla/4.0+(compatible;+MSIE+5.01;+Windows+NT+5.0)';

++++if+(+!+file_exists(self::$cookie_file)+%7C%7C+!+is_writable(self::$cookie_file))
++++{
++++++throw+new+Exception('Cookie+file+missing+or+not+writable.');
++++}

++++//+check+for+PHP+settings+that+unfits
++++//+correct+functioning+of+CURLOPT_FOLLOWLOCATION+
++++if+(ini_get('open_basedir')+!=+''+%7C%7C+ini_get('safe_mode')+==+'On')
++++{
++++++self::$followlocation_allowed+=+false;
++++}++++
++}

++/**
+++*+Main+method+for+GET+requests
+++*+@param++string+$url+URI+to+get
+++*+@return+string++++++request's+body
+++*/
++static+public+function+get($url)
++{
++++$process+=+curl_init($url);++++

++++self::_set_basic_options($process);

++++//+this+function+is+in+charge+of+output+request's+body
++++//+so+DO+NOT+include+HTTP+headers
++++curl_setopt($process,+CURLOPT_HEADER,+0);

++++if+(self::$followlocation_allowed)
++++{
++++++//+if+PHP+settings+allow+it+use+AUTOMATIC+REDIRECTION
++++++curl_setopt($process,+CURLOPT_FOLLOWLOCATION,+true);
++++++curl_setopt($process,+CURLOPT_MAXREDIRS,+self::$max_redirects);+
++++}
++++else
++++{
++++++curl_setopt($process,+CURLOPT_FOLLOWLOCATION,+false);
++++}

++++$return+=+curl_exec($process);

++++if+($return+===+false)
++++{
++++++throw+new+Exception('Curl+error:+'+.+curl_error($process));
++++}

++++//+test+for+redirection+HTTP+codes
++++$code+=+curl_getinfo($process,+CURLINFO_HTTP_CODE);
++++if+($code+==+301+%7C%7C+$code+==+302)
++++{
++++++curl_close($process);

++++++try
++++++{
++++++++//+go+to+extract+new+Location+URI
++++++++$location+=+self::_parse_redirection_header($url);
++++++}
++++++catch+(Exception+$e)
++++++{
++++++++throw+$e;
++++++}

++++++//+IMPORTANT+return+
++++++return+self::get($location);
++++}

++++curl_close($process);

++++return+$return;
++}

++static+function+_set_basic_options($process)
++{

++++curl_setopt($process,+CURLOPT_USERAGENT,+self::$user_agent);
++++curl_setopt($process,+CURLOPT_COOKIEFILE,+self::$cookie_file);
++++curl_setopt($process,+CURLOPT_COOKIEJAR,+self::$cookie_file);
++++curl_setopt($process,+CURLOPT_RETURNTRANSFER,+1);
++++//+curl_setopt($process,+CURLOPT_VERBOSE,+1);
++++//+curl_setopt($process,+CURLOPT_SSL_VERIFYHOST,+false);
++++//+curl_setopt($process,+CURLOPT_SSL_VERIFYPEER,+false);
++}

++static+function+_parse_redirection_header($url)
++{
++++$process+=+curl_init($url);++++

++++self::_set_basic_options($process);

++++//+NOW+we+need+to+parse+HTTP+headers
++++curl_setopt($process,+CURLOPT_HEADER,+1);

++++$return+=+curl_exec($process);

++++if+($return+===+false)
++++{
++++++throw+new+Exception('Curl+error:+'+.+curl_error($process));
++++}

++++curl_close($process);

++++if+(+!+preg_match('#Location:+(.*)#',+$return,+$location))
++++{
++++++throw+new+Exception('No+Location+found');
++++}

++++if+(self::$max_redirects--+<=+0)
++++{
++++++throw+new+Exception('Max+redirections+reached+trying+to+get:+'+.+$url);
++++}

++++return+trim($location[1]);
++}

}|code-block|syntax|javascript|299545|entityMap^0|0|W|A|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@]|A|$]]|$1|J|3|K|5|L|7|V|8|@]|9|@]|A|$M|N]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Sometimes you need to get HTTP headers but at the same time you don't want return those headers.**

This skeleton takes care of cookies and HTTP redirects using recursion. The main idea here is to avoid return HTTP headers to the client code.

You can build a very strong curl class over it. Add POST functionality, etc.

<pre><code>&lt;?php

class curl {

 static private $cookie_file = '';
 static private $user_agent = ''; 
 static private $max_redirects = 10; 
 static private $followlocation_allowed = true;

 function __construct()
 {
 // set a file to store cookies
 self::$cookie_file = 'cookies.txt';

 // set some general User Agent
 self::$user_agent = 'Mozilla/4.0 (compatible; MSIE 5.01; Windows NT 5.0)';

 if ( ! file_exists(self::$cookie_file) || ! is_writable(self::$cookie_file))
 {
 throw new Exception('Cookie file missing or not writable.');
 }

 // check for PHP settings that unfits
 // correct functioning of CURLOPT_FOLLOWLOCATION 
 if (ini_get('open_basedir') != '' || ini_get('safe_mode') == 'On')
 {
 self::$followlocation_allowed = false;
 } 
 }

 /**
 * Main method for GET requests
 * @param string $url URI to get
 * @return string request's body
 */
 static public function get($url)
 {
 $process = curl_init($url); 

 self::_set_basic_options($process);

 // this function is in charge of output request's body
 // so DO NOT include HTTP headers
 curl_setopt($process, CURLOPT_HEADER, 0);

 if (self::$followlocation_allowed)
 {
 // if PHP settings allow it use AUTOMATIC REDIRECTION
 curl_setopt($process, CURLOPT_FOLLOWLOCATION, true);
 curl_setopt($process, CURLOPT_MAXREDIRS, self::$max_redirects); 
 }
 else
 {
 curl_setopt($process, CURLOPT_FOLLOWLOCATION, false);
 }

 $return = curl_exec($process);

 if ($return === false)
 {
 throw new Exception('Curl error: ' . curl_error($process));
 }

 // test for redirection HTTP codes
 $code = curl_getinfo($process, CURLINFO_HTTP_CODE);
 if ($code == 301 || $code == 302)
 {
 curl_close($process);

 try
 {
 // go to extract new Location URI
 $location = self::_parse_redirection_header($url);
 }
 catch (Exception $e)
 {
 throw $e;
 }

 // IMPORTANT return 
 return self::get($location);
 }

 curl_close($process);

 return $return;
 }

 static function _set_basic_options($process)
 {

 curl_setopt($process, CURLOPT_USERAGENT, self::$user_agent);
 curl_setopt($process, CURLOPT_COOKIEFILE, self::$cookie_file);
 curl_setopt($process, CURLOPT_COOKIEJAR, self::$cookie_file);
 curl_setopt($process, CURLOPT_RETURNTRANSFER, 1);
 // curl_setopt($process, CURLOPT_VERBOSE, 1);
 // curl_setopt($process, CURLOPT_SSL_VERIFYHOST, false);
 // curl_setopt($process, CURLOPT_SSL_VERIFYPEER, false);
 }

 static function _parse_redirection_header($url)
 {
 $process = curl_init($url); 

 self::_set_basic_options($process);

 // NOW we need to parse HTTP headers
 curl_setopt($process, CURLOPT_HEADER, 1);

 $return = curl_exec($process);

 if ($return === false)
 {
 throw new Exception('Curl error: ' . curl_error($process));
 }

 curl_close($process);

 if ( ! preg_match('#Location: (.*)#', $return, $location))
 {
 throw new Exception('No Location found');
 }

 if (self::$max_redirects-- &lt;= 0)
 {
 throw new Exception('Max redirections reached trying to get: ' . $url);
 }

 return trim($location[1]);
 }

}
</code></pre>

blocks|key|297185|text|您可以使用：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|297186|$redirectURL+=+curl_getinfo($ch,CURLINFO_REDIRECT_URL);|code-block|syntax|javascript|297187|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

You can use:

<pre><code>$redirectURL = curl_getinfo($ch,CURLINFO_REDIRECT_URL);
</code></pre>

blocks|key|299554|text|将此行添加到curl+inizialization|type|unstyled|depth|inlineStyleRanges|entityRanges|data|299555|curl_setopt($ch,+CURLOPT_FOLLOWLOCATION,+true);|code-block|syntax|javascript|299556|并在curl_close之前使用getinfo|299557|$redirectURL+=+curl_getinfo($ch,CURLINFO_EFFECTIVE_URL+);|299558|es：|299559|$ch+=+curl_init($url);
curl_setopt($ch,+CURLOPT_HEADER,+false);
curl_setopt($ch,+CURLOPT_USERAGENT,'Mozilla/5.0+(Windows;+U;+Windows+NT+5.1;+en-US;+rv:1.8.1.13)+Gecko/20080311+Firefox/2.0.0.13');
curl_setopt($ch,+CURLOPT_RETURNTRANSFER,+true);
curl_setopt($ch,+CURLOPT_BINARYTRANSFER,+true);
curl_setopt($ch,+CURLOPT_FOLLOWLOCATION,+true);
curl_setopt($ch,+CURLOPT_CONNECTTIMEOUT+,0);+
curl_setopt($ch,+CURLOPT_TIMEOUT,+60);
$html+=+curl_exec($ch);
$redirectURL+=+curl_getinfo($ch,CURLINFO_EFFECTIVE_URL+);
curl_close($ch);|299560|entityMap^0|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|T|8|@]|9|@]|A|$E|F]]|$1|K|3|L|5|6|7|U|8|@]|9|@]|A|$]]|$1|M|3|N|5|D|7|V|8|@]|9|@]|A|$E|F]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

Add this line to curl inizialization
<pre><code>curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
</code></pre>
and use getinfo before curl_close
<pre><code>$redirectURL = curl_getinfo($ch,CURLINFO_EFFECTIVE_URL );
</code></pre>
es:
<pre><code>$ch = curl_init($url);
curl_setopt($ch, CURLOPT_HEADER, false);
curl_setopt($ch, CURLOPT_USERAGENT,'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.13) Gecko/20080311 Firefox/2.0.0.13');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_BINARYTRANSFER, true);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT ,0); 
curl_setopt($ch, CURLOPT_TIMEOUT, 60);
$html = curl_exec($ch);
$redirectURL = curl_getinfo($ch,CURLINFO_EFFECTIVE_URL );
curl_close($ch);
</code></pre>

blocks|key|300116|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|300117|$resultCurl=curl_exec($curl);+//get+curl+result
//Optional+line+if+you+want+to+store+the+http+status+code
$headerHttpCode=curl_getinfo($curl,CURLINFO_HTTP_CODE);

//let's+use+dom+and+xpath
$dom+=+new+\DOMDocument();
libxml_use_internal_errors(true);
$dom->loadHTML($resultCurl,+LIBXML_HTML_NODEFDTD);
libxml_use_internal_errors(false);
$xpath+=+new+\DOMXPath($dom);
$head=$xpath->query("/html/body/p/a/@href");

$newUrl=$head[0]->nodeValue;|code-block|syntax|javascript|300118|位置部分是apache发送的HTML中的一个链接。所以Xpath是恢复它的最佳选择。|300119|entityMap^0|0|0|0^^$0|@$1|2|3|-4|4|5|6|J|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|K|7|@]|8|@]|9|$D|E]]|$1|F|3|G|4|5|6|L|7|@]|8|@]|9|$]]|$1|H|3|-4|4|5|6|M|7|@]|8|@]|9|$]]]|I|$]]

Lot's of regex here, despite the fact i really like them this way might be more stable to me:

<pre><code>$resultCurl=curl_exec($curl); //get curl result
//Optional line if you want to store the http status code
$headerHttpCode=curl_getinfo($curl,CURLINFO_HTTP_CODE);

//let's use dom and xpath
$dom = new \DOMDocument();
libxml_use_internal_errors(true);
$dom-&gt;loadHTML($resultCurl, LIBXML_HTML_NODEFDTD);
libxml_use_internal_errors(false);
$xpath = new \DOMXPath($dom);
$head=$xpath-&gt;query("/html/body/p/a/@href");

$newUrl=$head[0]-&gt;nodeValue;
</code></pre>

The location part is a link in the HTML sent by apache. So Xpath is perfect to recover it.

I'm trying to make curl follow a redirect but I can't quite get it to work right. I have a string that I want to send as a GET param to a server and get the resulting URL.

Example:

<blockquote>
 String = Kobold Vermin 
 Url = www.wowhead.com/search?q=Kobold+Worker
</blockquote>

If you go to that url it will redirect you to "www.wowhead.com/npc=257". I want curl to return this URL to my PHP code so that i can extract the "npc=257" and use it.

Current code:

<pre><code>function npcID($name) {
 $urltopost = "http://www.wowhead.com/search?q=" . $name;
 $ch = curl_init();
 curl_setopt($ch, CURLOPT_USERAGENT, "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.8.1.1) Gecko/20061204 Firefox/2.0.0.1");
 curl_setopt($ch, CURLOPT_URL, $urltopost);
 curl_setopt($ch, CURLOPT_REFERER, "http://www.wowhead.com");
 curl_setopt($ch, CURLOPT_HTTPHEADER, Array("Content-Type:application/x-www-form-urlencoded"));
 curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
 return curl_getinfo($ch, CURLINFO_EFFECTIVE_URL);
}
</code></pre>

This however returns www.wowhead.com/search?q=Kobold+Worker and not www.wowhead.com/npc=257.

I suspect PHP is returning before the external redirect happens. How can I fix this?

How can I find where I will be redirected using cURL?

服务器

Windows

我正在尝试让curl遵循一个重定向，但是我不能让它正常工作。我有一个字符串，我想将它作为GET参数发送到服务器，并获得结果URL。示例：字符串= Kobold VerminUrl =www.wowhad.com/search?q=Kobold+Worker如果您转到该url，它会将您重定向到“www.wowhad.co...

问如何使用cURL找到我将被重定向的位置？
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问如何使用cURL找到我将被重定向的位置？
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