Expired timestamp, yours 1547262657, ours 1548013694
OAuthRequest Object ( [parameters:OAuthRequest:private] => Array ( [oauth_version] => 1.0 [oauth_nonce] => 1aba873c2bb197c6d375667c46947a0a [oauth_timestamp] => 1547262657 [oauth_consumer_key] => key [oauth_token] => requestkey [oauth_signature_method] => PLAINTEXT [oauth_signature] => secret%26requestsecret ) [http_method:OAuthRequest:private] => GET [http_url:OAuthRequest:private] => http://term.ie/oauth/example/access_token.php?oauth_version=1.0&oauth_nonce=1aba873c2bb197c6d375667c46947a0a&oauth_timestamp=1547262657&oauth_consumer_key=key&oauth_token=requestkey&oauth_signature_method=PLAINTEXT&oauth_signature=secret%2526requestsecret [base_string] => )