use a variable based on a form post

I have a variable for a grand total of ($XC_GranTotal)

$XC_GranTotal = $XCart_sumTotal + $XC_SalesTax + $XC_Shipping-$XC_Discount;

I have a form field if a value of "BOO" is added, I want to add a 20% discount to the $XC_GranTotal

< form id = "form2" name = "form2" method = "post" action = "" >

< input type = "text" name = "discount" id = "discount" / >

< input type = "submit" name = "button" id = "button" value = "Submit" / >

< / make >

I have started but don't know what to do after

<? PHP

if($_POST['discount']=='BOO')

{

$lessTwentyPercent = 0.02;

}

{

on the other

{

$noDiscount = 0.00

}

}

end discount code

? >

then - either of the new variable on

$XC_GranTotal = $XCart_sumTotal + $XC_SalesTax + $XC_Shipping-$XC_Discount;

Post edited by: Jonathan Fortis

Would this work?

<>

if($_POST['discount']=='BOO')

{

$multiplier = 0.8;

}

on the other

{

$multiplier = 1;

}

$XC_GranTotal = ($XCart_sumTotal * $multiplier) + $XC_SalesTax + $XC_Shipping;

end discount code

?>

Tags: Dreamweaver

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