A simple administrative web application for schools

We have some online test built with JS (html5) and we need an administrative web site for it with a simple product buy module. The web site design (CSS), application (PHP), DB design is included. There are some users: admin, school, teacher, company, employer. School: -enters the site with username / psw. -add teacher and students with details -for each test result (the result will be calculated by us and put in server or in db), school can see a visual report contains one graphical chart and text with given format. -school can edit the student info and view all test repots of the student -school can buy credits ( there are about 5 products like 1000credit XX$ , 2000credits XX$ ...) Teacher: -enters the site with username / psw. -add students with details -for each student, teacher can make a test ( the test is ready to use, the test page can send result as post method) -for each test result (the result will be calculated by us and put in server or in db), teacher can see a visual report contains one graphical chart and text with given format. -teacher can view all test repots of the student -for each test, one credit will drop from School account Company | Employee: -> same role with School | teacher but the "student" user type has changed as employee and the information need to them changed. Admin: - admin can see all the user details and edit them. - admin can add or delete credits from user accounts Pages; -1 Landing page with username and password -2 if forgot -> link to a contact us page. The title and main body of message and send button. The message will be sent to an email. -3 sign-up -> link to a special contact us page with taking user info (phone , email , etc) and send a request button. The message will be sent to an email. -4 Home - Dashboard page contains: - add a employee/student - see all employees/ students button - buy credits button with current credits info - make a test button (link to test page, it has been developed) -5 add a employee / student -> fields for info of them (info has changed from employee to student) -6 see all employees/ students - see all related employees / students. ( company / school can see and edit all details) - see all test reports -7 test report - the details of test result - a graphical representation (chart) - an excel / PDF export -8 buy credits - select product to buy - credit card info and use virtual pos For Admin: - A page for = Add, edit, report to excel file of Company / School and Employee / Student. - See all users, can edit them. - See all reports. -> admin can see or enter website as company/ school/ teacher/ employee role, because the psw can't seen by admin! Features of web page; - Cross browser - Can be used via mobile devices with NO problem - Security issues are important (exp. passwords should be hashed in DB and parameters should be used in entrance etc. )