Facebook PHP SDK get access token using php

Question

I am using the following code to post to Facebook:

require('facebook.php');

$fb = new Facebook(array('appId' => 'MY APP ID','secret' => 'MY APP SECRET','cookie' => true));

$result = false;
$feed_dir = '/401868882779/feed/';  //to the UID you want to send to
$acToken = "MY ACCESS TOKEN";
$url = 'URL';
$link = $url . 'event.php?id=' . $id;
if (isset($picture))
{
    $picture = $url . 'uploads/' . $picture;
}
else
{
    $picture = $url . 'images/blank100x70.png';
}
$msg_body = array('access_token' => $acToken,'name' => $noe_unsecured,'message' => $link,'link' => $link,'description' => $description_unsecured,'picture' => $picture);

try
{
    $result = $fb->api($feed_dir, 'post', $msg_body);
} 
catch (Exception $e)
{     
        $err_str = $e->getMessage();
}

but I need to update the access token manually every time it changes. I am sure there's solution but I cant find it.. I tried lots of scripts and nothing worked.

Answer 1

It is possible.

Check: http://developers.facebook.com/docs/reference/php/facebook-setAccessToken/

Answer 2

Depending on when you perform the wall post, you might need to request the offline_access permission. This will convert your access_token into a format that does not expire so there would be no need to refresh the token.

Answer 3

A simple solution... remove the access_token !
You simply don't need it as long as you got the publish_stream permission!

Answer 4

I believe there are multiple methods to do this:

- you can use the method already provided in the PHP SDK getAccessToken which returns the current access token being used by the sdk instance, more info at this url .

- However you need not use an access token to call the api() method, once you ask the user for the publish_stream permission, as already mentioned by @ifaour. Hence you can do something like this example , scroll to the subheading Post a link to a User's wall using the Graph API .

- Then, you have another three options

i) either get a new access token using the method here , if you are posting when the user is currently using your app, otherwise you can try the next 2 options
ii) get offline access
iii) i'm not sure of this, but you might want to try with an app access token which can be obtained this way .