Facebook application development using PHP SDK

Question

I am a newbie in Facebook app development. I chose the PHP SDK since I am comfortable with PHP. After spending some time, I'm still unable to start on the actual app.

<?php 
require_once 'facebook.php';

$facebook = new Facebook(
    array(
        'appId'  => 'XXXXXXXXXXXXXX',
        'secret' => 'XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXx',
    )
);



$user_id = $facebook->getUser();
var_dump($user_id) ;
$userInfo = $facebook->api('/' + $user_id);

echo ' Welcome ' . $userInfo['name'] ;
?>

The above code should simply print the user's name. But its giving the error:

Fatal error: Uncaught CurlException: 77: error setting certificate verify locations: CAfile: C:\wamp\www\fb/fb_ca_chain_bundle.crt CApath: none thrown in C:\wamp\www\fb\base_facebook.php on line 853

What am I doing wrong here?

I removed the APP_ID and APP_SECRET from your code. You should **NEVER** make your APP_SECRET public - You should reset it immediately by going to the `basic settings` of your application in the [developers app](https://developers.facebook.com/apps). You don't have to post the APP_ID either - unless someone is trying to assist you and see something on the actual application. — Lix, Jan 25 '12 at 18:45

score 6 · Answer 1 · answered Jul 10 '13 at 10:56

6

You need to have fb_ca_chain_bundle.crt in the same folder as base_facebook.php. You can get it here : certificate

answered Jul 10 '13 at 10:56

abhilashv

1,418
1
13
18

1

Thank you, this fixed it for me, I didn't even have the file. Thanks a bundle. – Andrew Mar 27 '14 at 03:37

score 4 · Accepted Answer · answered Jan 24 '12 at 22:29

Looks like it can't find fb_ca_chain_bundle.crt, maybe the forward slash needs to be backward slash, so try looking it up and changing it.

If that doesn't work, this might:

Facebook::$CURL_OPTS[CURLOPT_SSL_VERIFYPEER] = false;
Facebook::$CURL_OPTS[CURLOPT_SSL_VERIFYHOST] = 2;

score 1 · Answer 3 · answered Jun 23 '12 at 09:42

1

please check my github repo:

https://github.com/kanishkaganguly/Facebook_PHP_SDK

I have also recently started and have uploaded a set of code demonstrating the various functions of the PHP SDK.

Let me know if you find it useful.

answered Jun 23 '12 at 09:42

Kanishka Ganguly

11
1

I downloaded the files from your github. In index.php it shows the login with FB link even when I am logged in. It then took me to approve the app. I approved it. But then it went back again to the same page with Login with FB. I am not seeing the error I see with my /me call but I am not seeing the personal details either. – somnath Dec 26 '12 at 13:31

score 1 · Answer 4 · answered Oct 01 '13 at 12:25

1

i have no idea why what I did worked, but I modified base_facebook.php line 978 for me,
from:
if (curl_errno($ch) == 60)
to:
if (curl_errno($ch) == 77 or curl_errno($ch) == 60)

answered Oct 01 '13 at 12:25

Cosmin Bacanu

507
4
7

Looks like this fix has been applied on the current master branch. – James Newell Oct 23 '13 at 13:51

Facebook application development using PHP SDK

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