CODEWITHSUNDEEP
phpfacebook-graph-apicurlgetfile-get-contents
Curt
Curt

Reputation: 1181

PHP file_get_contents & curl can get image files from some sites but not others. Why?

file_get_contents in PHP/Apache2 was getting user pictures from Facebook. It was working fine until recently. Now, it always times out after a minute, with this error in my Apache2 error.log:

PHP Warning: file_get_contents(https://graph.facebook.com/999999999/picture?width=200): failed to open stream: Connection timed out

Here is the code (I recently added $context to see if it made it work. It did not):

$context = stream_context_create(array('https' => array('header'=>'Connection: close\r\n')));
$fbprofileimage = file_get_contents('https://graph.facebook.com/'.$id.'/picture?width=100',false,$context);

I tried curl and it doesn't work:

$curl_handle=curl_init();
curl_setopt($curl_handle, CURLOPT_URL,'http://graph.facebook.com/'.$id.'/picture?width=100');
curl_setopt($curl_handle, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl_handle, CURLOPT_USERAGENT, 'StockBet');
$fbprofileimage = curl_exec($curl_handle);
curl_close($curl_handle);

I found out that file_get_contents & curl will work with some sites, but not others.

The following works:

$context = stream_context_create(array('https' => array('header'=>'Connection: close\r\n')));
$fbprofileimage = file_get_contents('https://fm.cnbc.com/applications/cnbc.com/resources/img/editorial/2017/08/03/104629909-GettyImages-630953738-bitcoin.240x160.jpg?v=1501760634',false,$context);

$curl_handle=curl_init();
curl_setopt($curl_handle, CURLOPT_URL,'https://fm.cnbc.com/applications/cnbc.com/resources/img/editorial/2017/08/03/104629909-GettyImages-630953738-bitcoin.240x160.jpg?v=1501760634');
curl_setopt($curl_handle, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($curl_handle, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($curl_handle, CURLOPT_USERAGENT, 'StockBet');
$fbprofileimage = curl_exec($curl_handle);
curl_close($curl_handle);

The above code can get the following image files as well:

The above code cannot get the following image files:

Does anyone know why I can get image files from some sites but not others?

Upvotes: 0

Views: 902

Answers (1)

Curt
Curt

Reputation: 1181

For my purposes, which is to get user pictures from Facebook, I got it to work by using the following code:

        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);  // need confirmed
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);  // need confirmed.  I think this is key, as Facebook redirects to another URL and we need to follow
        //curl_setopt($ch, CURLOPT_ENCODING,"");  // not needed confirmed
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 1);  // need confirmed
        curl_setopt($ch, CURLOPT_TIMEOUT,1);  // need confirmed
        curl_setopt($ch, CURLOPT_FAILONERROR,true);  // not needed confirmed
        //curl_setopt($ch, CURLOPT_VERBOSE, true);  // not needed confirmed
        //curl_setopt($ch, CURLINFO_HEADER_OUT, true);  // not needed confirmed
        curl_setopt($ch, CURLOPT_HEADER, true);  // need confirmed
        $fbprofileimage = curl_exec($ch);   
        if (curl_errno($ch)){
            echo 'Retreive Base Page Error: ' . curl_error($ch);
        }
        else {
          //$info = rawurldecode(var_export(curl_getinfo($ch),true));
         // Get the cookies:
          $skip = intval(curl_getinfo($ch, CURLINFO_HEADER_SIZE)); 
          //$responseHeader= substr($fbprofileimage,0,$skip);
          $fbprofileimage= substr($fbprofileimage,$skip);    // need confirmed
          //echo "HEADER: $responseHeader\n";   // causes error
          //echo "\n\nINFO: $info\n\nDATA: $fbprofileimage";  // causes error
        }

I think what was key was this:

curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

because when getting https://graph.facebook.com/999999999/picture?width=200 (where 999999999 is the user's ID), Facebook redirects to another URL.

Upvotes: 1

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