Ubuntu :: Browser Tries To Download The .php File Instead Of Display It

I installed ubuntu 10.04, apache2, perl, MYSQL and PHP5.

My test.pl script is working fine from /var/www directory.

That is from browser if I type:

It works.

Also test.pl runs from user home directory.

If I runs from browser with:

It works perfectly.

I made a soft link of:

Then Ln:

My test.pl runs perfectly from browser if I type:

Now I am facing problem with my PHP file. I have made a test.php script. And copy this file to:

My test.php displays perfectly to my browser with a address:

And:

But when I type:

To my browser address bar, my browser tries to download the file instead of display it.