Http500 exception occurs after PHP submits the form

http500 error occurred after PHP submitted form

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HTML section


<title>Popcorn Sales</title>







PHP Program


<title>Process the popcorn.html form</title>


$unpop =$_post["UnPop"];
$caramel =$_post["Caramel"];
$caramelnut =$_post["Caramelnut"];
$toffeynut =$_post["Toffeynut"];
$name =$_post["name"];
$street =$_post["Street"];
$city =$_post["City"];
$payment =$_post["Payment"];
if ($unpop = = "") $unpop = 0;
if ($caramel = = "") $caramel = 0;
if ($caramelnut = = "") $caramelnut = 0;
if ($toffeynut = = "") $toffeynut = 0;
$unpop _cost=3.0* $unpop;
$caramel _cost=3.5* $caramel;
$caramelnut _cost=4.5* $caramelnut;
$toffeynut _cost=5.0* $toffeynut;
$total _price= $unpop _cost+ $caramel _cost+ $caramelnut _cost+ $toffeynut _cost;
$total _items= $unpop + $caramel + $caramelnut + $toffeynut;
?>

Customer:

Print ("$name
$street
$city
");
?>



Order information

Product	Unit price	Quantity Ordered	Item cost
unpopped Popcorn	$	!--? php print ("$unpop"),?-->	!--? php printf ("$%4.2f", $unpop _cost);?--"
Caramel Popcorn	$3:50	!--? php print ("$caramel");?-->	!--? php printf ("$%4.2f", $caramel _cost),?--"
Caramel Nut Popco RN	$4:50	!--? php print ("$caramelnut"),?-->	!--? php printf ("$%4.2f", $car Amelnut_cost);?-->
Toffey Nut popcorn	$5:00	!--? p HP print ("$toffeynut"),?-->	!--? php printf ("$%4.2f", $toffeynut _cost);?--"