I have read some introduction about Facebook's access token on http://www.devils-heaven.com/facebook-access-tokens/
What I want to ask is that can the page access token of Facebook be used as a permanent token if I just want to post something on the wall like user access token?
First of all don't ever follow the third-party documentation for the facebook integration. They have the official documentation pls follow that. For access tokens read here.
What I want to ask is that can the page access token of Facebook be used as a permanent token if I just want to post something on the wall like user access token?
Its actually a vague question. It depends on what kind of posting you want to do. For eg:
If you want to post on a user's wall- there's nothing that a page access token can do
If you want to post a user's group/event etc. wall, again page access token has nothing to do with it.
If you want to post on a page, then yes you have to use the page access token in order to post on behalf of page itself.
Page access tokens are used in Graph API calls to manage Facebook Pages. To generate a page access token, an admin of the page must grant an extended permission called manage_pages. Once this permission has been granted, you can retrieve the page access token using the following Graph API request:
GET /{user-id}/accounts
You can also extend a page access token that will never expire. See here how to do that!
