Question

我有一个函数，它将url的数组作为输入。我已经验证了网址是正确的，我可以完美地遍历它们。我还使用curl_getinfo验证了curl正在下载正确的页面。但是，curl（html）的输出对于每个页面都是相同的。这是我的代码：

          $urls = array();
     $urls = getpages($mainpage);
     print_r($urls);
     foreach($urls as $link) {
         echo $link. '<br><br><br>';
         $circdl = my_curl($link);
         echo $circdl. '<br><br><br>';
         $circdl = NULL;
     }

输出的url数组如下：

 Array ( [0] => http://www.site.com/savings/viewcircular?promotionId=81498&sneakpeek=&currentPageNumber=1 [1] => http://www.site.com/savings/viewcircular?promotionId=81498&sneakpeek=&currentPageNumber=2

$ link也与curl_getinfo中的curl一样输出。我通过这个循环运行了另一个url数组，它们工作正常，但我怀疑这里的问题是url（＆符号）的格式。我真的很难过为什么这些页面没有按预期下载。

这是my_curl函数：

 function my_curl($url)
 {
$timeout=10;
$error_report=TRUE;
$curl = curl_init();
$cookiepath = drupal_get_path('module','mymodule'). '/cookies.txt';

// HEADERS AND OPTIONS APPEAR TO BE A FIREFOX BROWSER REFERRED BY GOOGLE
$header[] = "Accept: text/xml,application/xml,application/xhtml+xml,text/html;q=0.9,text/plain;q=0.8,image/png,*/*;q=0.5";
$header[] = "Cache-Control: max-age=0";
$header[] = "Connection: keep-alive";
$header[] = "Keep-Alive: 300";
$header[] = "Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7";
$header[] = "Accept-Language: en-us,en;q=0.5";
$header[] = "Pragma: "; // BROWSERS USUALLY LEAVE BLANK

// SET THE CURL OPTIONS - SEE http://php.net/manual/en/function.curl-setopt.php
curl_setopt( $curl, CURLOPT_URL,            $url  );
curl_setopt( $curl, CURLOPT_USERAGENT,      'Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.6) Gecko/20091201 Firefox/3.5.6'  );
curl_setopt( $curl, CURLOPT_HTTPHEADER,     $header  );
curl_setopt( $curl, CURLOPT_REFERER,        'http://www.google.com'  );
curl_setopt( $curl, CURLOPT_ENCODING,       'gzip,deflate'  );
curl_setopt( $curl, CURLOPT_AUTOREFERER,    TRUE  );
curl_setopt( $curl, CURLOPT_RETURNTRANSFER, TRUE  );
curl_setopt( $curl, CURLOPT_FOLLOWLOCATION, TRUE  );
curl_setopt( $curl, CURLOPT_COOKIEFILE,     $cookiepath );
curl_setopt( $curl, CURLOPT_COOKIEJAR,      $cookiepath );
curl_setopt( $curl, CURLOPT_TIMEOUT,        $timeout  );

// RUN THE CURL REQUEST AND GET THE RESULTS
$htm = curl_exec($curl);

// Check for page request

//$info = curl_getinfo($curl);
//echo 'Took ' . $info['total_time'] . ' seconds to send a request to ' . $info['url'];

// ON FAILURE HANDLE ERROR MESSAGE
if ($htm === FALSE)
{
    if ($error_report)
    {
        $err = curl_errno($curl);
        $inf = curl_getinfo($curl);
        echo "CURL FAIL: $url TIMEOUT=$timeout, CURL_ERRNO=$err";
        var_dump($inf);
    }
    curl_close($curl);
    return FALSE;
}

// ON SUCCESS RETURN XML / HTML STRING
curl_close($curl);
return $htm;

}

有趣的是，如果我运行它：

 echo my_curl('http://www.site.com/savings/viewcircular?promotionId=81498&sneakpeek=&currentPageNumber=2')

输出正确!! ?? :(

感谢您的帮助！

Answer 1

我发现问题在于将url的编码传递给我的函数。我错误地剥离了编码并在网址上添加了“人类可读”的结尾。这导致主机无法正确识别页面。我如何解决这个问题是为了忽略我更好的判断并且不考虑编码。现在传递数组时，页面正确加载。感谢所有给我这看的人。这让我很难过！

以下是我的解释代码片段：

 function getpages($url) {
 global $host;
 $circdl = my_curl($url);
 $circqp = htmlqp($circdl,'body');
 //Extract last page number
 $lastpagenumber = $circqp->branch()->find('li[class="last-page"]')->text();
 $lastpagenumberurl = $circqp->branch()->find('li[class="last-page"]')->children('a')->attr('href');  
 //Extract page link root
 $pagelinkroot = substr_replace($lastpagenumberurl,"",-2);
 $currentpage = "=";               
 $lpn = intval($lastpagenumber);

 //Move through the remaining pages
 $pagelinks = array();
   for ($i = 1; $i <= $lpn; ++$i) {
   $pagelinks[] = join(array($host,$pagelinkroot,$currentpage,$i));
   }
   return $pagelinks;
 }

Substr_replace用于规定ecoding。我把它从20改为2，只是将结束剥离，然后在循环后通过链接附加它。

PHP卷曲下载问题

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