Unable to file_get_contents to work

I am using facebook graph api, to retrieve logged in user's info.

$facebookdata = 开发者_开发百科json_decode(file_get_contents('https://graph.facebook.com/me?access_token=' . $fb_accesstoken . '&fields=name,picture'),true);

Now When I var_dump I get null. I did try to goto url https://graph.facebook.com/me?access_token=ACCESS_TOKEN&fields=id,name,picture. It shows the name and photourl.

I appreciate any help.

Instead of using file_get_contents you can you the Facebook PHP SDK (see on github) which is easier to use :

require "facebook.php";
$facebook = new Facebook(array(
    'appId'  => YOUR_APP_ID,
    'secret' => YOUR_APP_SECRET,
));

$facebook->setAccessToken("...");

$args['fields'] = "name,picture";
$facebookdata = $facebook->api('/me', $args);

Check the example of the SDK out (well documented) if you want to see the flow to get the user access token.

Hope that helps !

Check if allow_url_fopen is enabled in your php.ini. Otherwise adapt, because file_get_contents will not be able to read from http URLs then.

Second, raise your error_reporting level. It should have told you so.

If you get no error message, then access with the PHP user_agent might be blocked. There is another php.ini setting for that. Also alternatively, just try curl.

You should determine what http response code is being returned by your request.

I've found that file_get_contents() only works when the http response is 200, OK.

It doesn't return a string if the response code is 404 (page not found), 400 (bad request), etc.

Hitting the Facebook API with an incorrect access_token returns 400.

Example:

file_get_contents() with 'http://www.google.co.uk' works, http response from google is 200

file_get_contents() with 'http://www.google.co.uk/me' is null, http response from google is 404

 //i had the same problem before.for some reason the server has a problem with file_get_contents and i used this function.try it instead
 /* gets the data from a URL */
 function get_myurl_data($url) {
$ch = curl_init();
$timeout = 5;
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
$data = curl_exec($ch);
curl_close($ch);
return $data;
 }
 $url = 'https://graph.facebook.com/me?access_token=' . $fb_accesstoken . '&fields=name,picture';
 $facebookdata = json_decode(get_myurl_data($url));