php - file_get_contents not working on the server but working fine on local machine

Solution:

as the manual says:

A URL can be used as a filename with this function if the fopen wrappers have been enabled. See fopen() for more details on how to specify the filename. See the Supported Protocols and Wrappers for links to information about what abilities the various wrappers have, notes on their usage, and information on any predefined variables they may provide.

so fopen wrappers are not enabled on host

Solution:

i solved it by using this code instead

  $ch = curl_init();
  curl_setopt($ch,CURLOPT_URL,$url);
  curl_setopt($ch,CURLOPT_POST, 1);                 
  curl_setopt($ch,CURLOPT_POSTFIELDS,'');
  curl_setopt($ch,CURLOPT_RETURNTRANSFER, true);
  curl_setopt($ch,CURLOPT_CONNECTTIMEOUT ,200);
  curl_setopt($ch,CURLOPT_TIMEOUT, 200);
  curl_setopt($ch, CURLOPT_HTTPHEADER, array(
    'Content-Type: application/json'
  ));
  $response = curl_exec($ch);
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Solution:

In my case, for some weird reason my old server setting wont add header with this code

$header = "Authorization: key=AAAAiQXvgZA:APA91bGKc12FiRd3l3jz\r\n"."Content-Type: application/json\r\n"."User-Agent: Mozilla/5.0 (iPad; U; CPU iPad OS 5_0_1 like Mac OS X; en-us)   AppleWebKit/535.1+ (KHTML like Gecko) Version/7.2.0.0 Safari/6533.18.5\r\n";

        $options = array(
            'http' => array(
              'method'  => 'POST',
              'content' => $data,
              'header' => $header,
              "ssl"=>array(
                              "verify_peer"=>false,
                              "verify_peer_name"=>false
                            )
            )
        );

      $context  = stream_context_create($options);

      $result = file_get_contents($url, false, $context);
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I have to walk around by adding the following code before use stream_context_create:

ini_set("user_agent" , "Mozilla/3.0\r\nAccept: */*\r\nX-Padding: Foo\r\nAuthorization: key=AAAAiQXvgZA:APA91bGKc12FiRd3l3jzIgMVsF9Dkn25xF\r\nContent-Type: application/json");
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Hope this help someone someday and sorry for my bad english !