Decode link protector adf.ly

We need to me able to decode protected links which are protected by adf.ly. [login to view URL] have recently updated their site and the way they protect the links. The new method has a new function inside JavaScript to decode the link which is provided from the [login to view URL] server. We need to have a php function which will take a [login to view URL] url like this [login to view URL] and decode it to a normal web link [login to view URL] We will provide a selection of 5 urls which need to be decoded to test the function with.