online self evaluation system

[cskinittest]

I want to create online self evaluation system like

Question No:1/2

Linux is a

1.Operating system
2.Middle ware system
3.Server system
4.Super computer

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I configured mysql to php is completed. the question and options are displayed..

I press next button, in question panel second question will display and I press previous button back to previous question how to do this ..

[diafol]

You need to show us YOUR code, so that we can help you smooth out any wrinkles.
The easiest way would be to have the buttons in a link that show the action, e.g.

<a href="?action=prev"><button>Previous</button></a>

There are many other ways to do this. You will need some sort of storage for keeping track of the current question - either use sessions or cookies. I would recommend session as it tends to be a lot easier.