Expired timestamp, yours 1500332127, ours 1500799404
OAuthRequest Object ( [parameters:OAuthRequest:private] => Array ( [oauth_version] => 1.0 [oauth_nonce] => add828778f70fc9ef8cebddc481095c0 [oauth_timestamp] => 1500332127 [oauth_consumer_key] => key [oauth_token] => requestkey [oauth_signature_method] => HMAC-SHA1 [oauth_signature] => C0QSPrnG3vfFvUSXUqbMdC6+K3U= ) [http_method:OAuthRequest:private] => GET [http_url:OAuthRequest:private] => http://term.ie/oauth/example/access_token.php?oauth_version=1.0&oauth_nonce=add828778f70fc9ef8cebddc481095c0&oauth_timestamp=1500332127&oauth_consumer_key=key&oauth_token=requestkey&oauth_signature_method=HMAC-SHA1&oauth_signature=C0QSPrnG3vfFvUSXUqbMdC6%2BK3U%3D [base_string] => )