I want to use an access card reader with PHP. I am doing this to monitor attendance at a college. Is there any intermediate technology which can be used to take the readings from access card reader to the database?
Likely, this cannot easily be integrated with PHP. Perhaps for a backend API interface via JSON or something, but the card reader interface will need to be something that can run and work with physical hardware.
Unless you mean, you already have the readings and want to put it in a database...PHP can parse it.