This open source self-check is a GNU licensed web application written in PHP. It uses John Wohler’s SIP2 php class to communicate with a library’s integrated library system (ILS). I have customized this for several libraries in IL and WI. It is a great starter for libraries looking to deploy open source self check.
PHP class library to facilitate communication with ILS server via 3m’s SIP2
This PHP class provides a method of communicating with an Integrated Library System using 3M’s SIP2 standard.