Expired timestamp, yours 1268359602, ours 1284114832
<hr />
OAuthRequest Object
(
    [parameters:OAuthRequest:private] => Array
        (
            [oauth_version] => 1.0
            [oauth_nonce] => c40812a8ca1e5cdbeb75e6958a99f21e
            [oauth_timestamp] => 1268359602
            [oauth_consumer_key] => key
            [oauth_token] => requestkey
            [oauth_signature_method] => HMAC-SHA1
            [oauth_signature] => BmY5gqLbrnvkXJ/GKWx6BidGFk0=
        )

    [http_method:OAuthRequest:private] => GET
    [http_url:OAuthRequest:private] => http://www.an9.org/oauth/example/access_token.php?oauth_version=1.0&oauth_nonce=c40812a8ca1e5cdbeb75e6958a99f21e&oauth_timestamp=1268359602&oauth_consumer_key=key&oauth_token=requestkey&oauth_signature_method=HMAC-SHA1&oauth_signature=BmY5gqLbrnvkXJ%2FGKWx6BidGFk0%3D
    [base_string] => 
)