Assignment

-DB -Architecture /Code (prefered MVC pattern) -Security -Ajax -Git

You could use any framework to create the project from scratch (Laravel, Code-ignitor, ....).

Please use one table design in the database for all categories and subs.

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Main categories select box

Unlimited subcategories of parent category (if it is hard to achive the unlimit levels, you can set 3 levels hard-coded)

Should use Ajax

Example

Category A Category B Sub B1 Sub B2 ....

Select Category B

Will create other select box with

SUB B1

SUB B2

Selecting Sub B2 will create select box

SUB SUB B2-1

SUB SUB B2-2

And so on