Adding / Mutiplying numbers in php

[Guest]

okay i know the following:

 

$a=5;
$b=10;
$c=($a*$b);

echo $c;

 

I know this is the basics for mupliying but i would like to do the following:

 

User types in a number say 10 and picks a product from a drop down menu of differnt products say a cookie from menu priced at 0.10

 

i would like it to mutiply these so 10 * 0.10 .

 

Its to make a sort of online qoute system.

 

Can anyone point me in the right direction?

 

many thanks

[genericnumber1]

You might want to google around a bit for form handling with php, and once you get that hammered down, ask about any specific problems you might have with implementing what you're explaining.