file_get_contents(url): failed to open stream的解决方案

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提问者：

Hello Everyone;

I am having a php file that gets the contents from a URL, i am getting the failure message 

 Collapse | Copy CodeWarning: file_get_contents(http://xxxxxx): failed to open stream: HTTP request failed! in xxxx.php on line xx 

i tried so many online solutions but its still not working. here is the code

 Collapse | Copy Code            $cryptpass = rawurlencode(crypt($pc['pcpassword']));

            $url = "http://" . $pc['pcname']."/Reports/ReportList.php?&username={$pc['pcusername']}&cryptpass=$cryptpass&noredir=1";

            $parsed_list = read_general_list($url, false); 

 Collapse | Copy Codefunction read_general_list($url, $make_assoc = false)

    {

        $compressed_data = file_get_contents($url);

    }

$compressed_data is always null and it throws an error:

Warning: file_get_contents(http://xxxxxx): failed to open stream: HTTP request failed! in xxxx.php on line xx

Any suggestions please? 

答复：

I am sorry, i never updated this question completely. May be if some one is still looking for an answer.

This has worked for me. This is the equivalent function for File_get_contents, but can handle large amount of data. I found this solution online.

 Collapse | Copy Code      function file_get_contents_curl($url) {

      $ch = curl_init();

      curl_setopt($ch, CURLOPT_HEADER, 0);

      curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1); //Set curl to return the data instead of printing it to the browser.

      curl_setopt($ch, CURLOPT_URL, $url);

      $data = curl_exec($ch);

      curl_close($ch);

      return $data;

      }

第二个解答：
 

As the error message says, the stream (URL) requested cannot be opened. There are many possible reasons for this:

1. base URL is bad. $pc['pcname']

2. username and/or password are bad

3. username/password do not have permission on the server

4. Your system cannot reach the server (firewall, PHP permissions, ...)

4. ...

I would use the following strategy to debug:

1. Dump $url and write it down.

2. Use a browser with debug tools (eg Firefox/Firebug) and try to access that URL.

3. Look at the headers returned to see what error the server reports (if any).

4. Think about why that error is returned...

Cheers,

Peter

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