I am using this example:
"KEY HERE" in the below error is my "Secret" value shown when I log into mashery. Am I missing something?
I get this error:
Array (  => stdClass Object ( [error_key] => http.status.authentication.invalid_token [error_message] => Invalid access token: KEY HERE ) )
I should also mention, we are integrating Constant Contact into a software application that gets distributed to many users. We basically just need to sync the contact lists between the two.
We need to support lower than PHP 5.3 which is the reason for not using your PHP 5.3 library.