获取Facebook Graph API扩展访问令牌

Question

I can get the posts I need from a Facebook Page using this code in PHP:

$token = "ACCESS_TOKEN";
$data = file_get_contents("https://graph.facebook.com/PAGE_ID/feed?access_token=".$token);
$data = json_decode($data, true);

However, the access token it just last 1 hour. I saw that it's possible to request a long live token that lasts 60 days, but stills not so clear for me with a good example.

Do you guys know a good example using PHP? Thank you in advance!

Answer 1

As per the Facebook documentation, you need to pass the short-lived access-token with app secret and in return you will get the Long-lived access-token

To get the long-lived user access_token simply pass your own client_id (your app_id), your app_secret, and the non-expired, short-lived access_token to the endpoint below. You will be returned a new long-lived user access_token; this access_token will exist in addition to the short-lived access_token that was passed into the endpoint.

Code Sample

https://graph.facebook.com/oauth/access_token?             
    client_id=APP_ID&
    client_secret=APP_SECRET&
    grant_type=fb_exchange_token&
    fb_exchange_token=EXISTING_ACCESS_TOKEN