RosarioSIS is a full featured Student Information System (SIS).
RosarioSIS is free software (open source) written in PHP.
It includes 10 modules designed for school management:
RosarioSIS is multilingual (french, spanish...) and provides Moodle LMS integration.
Official site: www.rosariosis.org
Check the online demo.
For installation & setup instructions, check the Quick Setup Guide.