douzhi9635 2017-02-25 18:02
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用php添加多个变量

So I am working on an assignment where I have to make a pizza order. Im new to PHP and am struggling to get my math to work. So this is my HTML 

<!doctype html>
<META HTTP-EQUIV="CACHE-CONTROL" CONTENT="NO-CACHE">
<meta http-equiv="expires" content="0" />
<html lang="en">
<head>
  <title> HW05 </title>
  <link rel="stylesheet" href="hw05.css">
</head>
<body>
<form method="post" action="hw05.php">
<header>
    <h1 id="title">
        Pizza Order
    </h1>
</header>
<section id="ci">
    <h2 id="ciheader">
        Customer Information
    </h2>
    <p id="text">
        Name: <input type="text" name="name" size="15" /> <br /><br />
        Phone: <input type="text" name="number" size="15" /> <br /> <br />
            <input type="submit" value="Order" />
    </p>
</section>

<section id="size">
    <h2 id="sizeheader">
        Pizze Size
    </h2>
    <p id="radio">
        <input type="radio" name="size1" value="small"> Small <br />
        <input type="radio" name="size2" value="medium"> Medium <br />
        <input type="radio" name="size3" value="large"> Large
    </p>
</section>

<section id="top">
    <h2 id="topheader">
        Toppings
    </h2>
    <p id="checkbox">
        <input type="checkbox" name="checkbox1" value="box"> Pepperoni <br />
        <input type="checkbox" name="checkbox2" value="box"> Sausage <br />
        <input type="checkbox" name="checkbox3" value="box"> Mushroom <br />
        <input type="checkbox" name="checkbox4" value="box"> Ham <br />
        <input type="checkbox" name="checkbox5" value="box"> Olives <br />
        <input type="checkbox" name="checkbox6" value="box"> Onions
    </p> 
</section>

<section id="price">
    <h2 id="priceheader">
        Topping Price
    </h2>
    <p id="dollars">
        $1.00 <br />
        $1.50 <br />
        $0.80 <br />
        $1.25 <br />
        $0.75 <br />
        $0.50
    </p>
</section>
</form>
</body>
</html>

So from the HTML I need to create a PHP page that counts the number of toppings and adds the total cost of the size and the toppings together. I can not figure out how to make the PHP add the cost of each topping and the cost of the pizza size together. I was able to get the PHP to count the toppings though. Any help would be great thanks.

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4条回答 默认 最新

  • doumou3883 2017-02-25 18:19
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    You could do something like:

    <input type="checkbox" name="topping[]" value="pepperoni"> Pepperoni <br />
<input type="checkbox" name="topping[]" value="sausage"> Sausage <br />
<input type="checkbox" name="topping[]" value="mushroom"> Mushroom <br />
<input type="checkbox" name="topping[]" value="ham"> Ham <br />
<input type="checkbox" name="topping[]" value="olives"> Olives <br />
<input type="checkbox" name="topping[]" value="onions"> Onions

    In your hw05.php file:

    $toppingToPriceMap = [
    "pepperoni" => 1,
    "sausage" => 0.8,
    "mushroom" => 1.25,
    "ham" => 0.75,
    "olives" => 0.5,
    "onions" => 0.75
];
if (isset($_POST["topping"]) {
   $numberOfToppings = count($_POST["topping"]);
   $cost = 0;
   foreach ($_POST["topping"] as $topping) {
       if (isset($toppingToPriceMap[$topping])) {
          $cost += $toppingToPriceMap[$topping]; 
       }
   }       
}

echo "Selected $numberOfToppings toppings at a cost of $".$cost;

    Note: This is just one of the fixes that your code requires.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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