Recurring Paypal payment PHP Module

I need a Paypal payment module implemented with PHP. Module needs to work and handle recurring Paypal payments. There would be a config file where I can set the following information + some extra information if needed. [login to view URL] $paypal_email = ”[login to view URL]@[login to view URL]”; $paypal_credentials = ”XXXXXXXXX”; $paypal_notify_url = ”[login to view URL]”; $monthly_payment = ”19.90”; $currency = ”EUR”; $period = “MONTHLY”; The module needs to work as a standalone system, so it can be used everywhere where I need it. My current project has high customer-client confidentiality so I can not tell you more. RECURRING PAYPAL PAYMENT Every month Paypal should notify my domain when the next monthly payment has been done, then I can update buying user data in the database that he still has access to my system. Therefore the notification URL should be something like: [login to view URL] So in Paypal payment notify I need know which user made the recent payment. In order to update the correct information. Paypal payment notifications come from whitelisted IP addresses so there needs to be list of them too. Say in a file called [login to view URL] See: [login to view URL] CANCELATION There needs to be implemented a system where the user can cancel his recurring monthly payment and if he wants he can activate it again. TEST It would be nice if I could test your code someway. SUCCESS FEE I will pay you extra 150 USD if the module works as expected. The extra fee will be paid when the first recurring payment notification works as expected. PS I prefer European and North American developers.