js for text editor is not good. Maybe can be replaced by some other. like https://www.tinymce.com/

Storing Questions in database will reduce the dependency of judge on system commands like mkdir etc. and also if question is accessed multiple times from the disk directly it might get corrupted, instead it should be saved to the database.

Using markdown support for uploading question might be far more effective than usng HMTL markup.

For the time being, before converting to REST, we need .htaccess to redirect direct requests to *Controller/index.php

by editting .htaccess and converting URLs the project can easily be transformed to REST

Although tester name is parsed from frontend but its not added to database.

After collecting all POST parameters and before converting date strings to standard date objects, data sanitization is required.

same description as issue #2

Can you place the output box under the input box ad make their length max. at page open so as to utilize the space. right now if I expand the input box it covers the output box.