Quiz application with admin and user panel and test window like sbi po exams

I want a quiz application with admin and user panel in php with following features: 1. Super Group 2. Group 3. Sub Group 4. Category 5. Level 6. Notification 7. Study Materials - word, pdf, excel, video and youtube link. 8. Question entry with tinymce or ckeditor latest version with Latex or Wiris editor for math equations. 9. quiz template similar to sbi po exams. 10. google and fb login 11. Single Choice Multiple Question, Multiple Choice Multiple Answer, Short Question, Match the following and essay type question. 12. social share 13. payment gateway integration. 14. practice and examination test and open test without login. 15. cart for buy package. 16. email and otp verification. 17. Live Classroom 18. Payment through coupon code. 19. Question import through word or excel. 20. Payumoney and Paytm payment gateway integration. 21. API for mobile app All these are there in my present quiz application except otp verification, cart for buy package, test window like sbi po exams and there is no separate login for admin and user. 1. I want a new web application with all the existing features but separate admin and user login. 2. Two Test window one similar to sbi po exams and other ssc exams - reference site toprankers.com. 3. When an user attempts a test, every input should not be entered in database but it should display result on submit and the result should then submit to database for rank and other comparison. 4. Tests can be paused and restarted. 5. User can buy any package and if an user buys another package all contents of the previous package along with present package should be available to the user. 6. Application to be developed in PHP 7.2.