Expired timestamp, yours 1512665852, ours 1513545654
OAuthRequest Object ( [parameters:OAuthRequest:private] => Array ( [oauth_version] => 1.0 [oauth_nonce] => b1d530936fc693d856ee07b3a008aeb8 [oauth_timestamp] => 1512665852 [oauth_consumer_key] => key [oauth_token] => requestkey [oauth_signature_method] => HMAC-SHA1 [oauth_signature] => ub7MigKUmeZJLOqF93q8tcyw4w0= ) [http_method:OAuthRequest:private] => GET [http_url:OAuthRequest:private] => http://term.ie/oauth/example/access_token.php?oauth_version=1.0&oauth_nonce=b1d530936fc693d856ee07b3a008aeb8&oauth_timestamp=1512665852&oauth_consumer_key=key&oauth_token=requestkey&oauth_signature_method=HMAC-SHA1&oauth_signature=ub7MigKUmeZJLOqF93q8tcyw4w0%3D [base_string] => )