php提交表单后出现http500异常

    





    





    





    

Order Information

php提交表单后出现http500错误 新手，刚接触php，麻烦各位大神了 html部分 php程序 $unpop=$_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 "); ?>
Product	Unit Price	Quantity Ordered	Item Cost
Unpopped Popcorn	$3:00
Caramel Popcorn	$3:50
Caramel Nut Popcorn	$4:50
Toffey Nut Popcorn	$5:00