I need to buy a simple academic control system


Hello, I need a simple academic control system, which you can insert the following:

  • Administrator
    -teachers (Assign subjects per course, a teacher can take English courses 5,6,7 and literature 8,9,10 5,6,7)
  • Courses
  • Students
  • Courses
  • Standards, Indicators to qualify (Note standard depends on at least two indicators, maximum 4)
  • Absences
  • Start dates and cut each academic period, to allow entry of notes.
  • Printed report notes each student, showing the position occupied each student in the total course.

How much would be worth that system in PHP?