我是PHP的新手，花了10个小时试图解决这个问题。
目标是将输入此订单的所有数据通过PHP发送到我的电子邮件中。
我有两个问题：
1.我可以让PHP从单个菜单项发送数据（例如：Mexican Tortas），但我如何让PHP从多个菜单项（例如：墨西哥Tortas、Fish Sandwich和Hamburger）发送数据？
2.如何告诉PHP不要从没有填写"How Many？"或"Customize It？"文本字段的菜单项发送数据？
如果你能提供一个超级简单的例子（或学习资源的链接），我会非常感激
谢谢，Abijah
PHP
<?php
if(isset($_POST['submit'])) {
$to = "test@mywebsite.com";
$subject = "New Order";
$name_field = $_POST['name'];
$phone_field = $_POST['phone'];
$item = $_POST['item'];
$quantity = $_POST['quantity'];
$customize = $_POST['customize'];
}
$body = "Name: $name_field'nPhone: $phone_field'n'nItem: $item'nQuantity: $quantity'nCustomize: $customize";
echo "Data has been submitted to $to!";
mail($to, $subject, $body);
?>
HTML
<form action="neworder.php" method="POST">
<div class ="item">
<img style="float:left; margin-right:15px; border:1px Solid #000; width:200px; height:155px;" src="images/mexicantortas.jpg">
<h1>Mexican Torta - $8.50</h1>
<input name="item" type="hidden" value="Mexican Torta"/>
<h2>How Many? <font color="#999999">Ex: 1, 2, 3...?</font></h2>
<input name="quantity" type="text"/>
<h3>Customize It? <font color="#999999">Ex: No Lettuce, Extra Cheese...</font></h3>
<textarea name="customize"/></textarea>
</div><!-- ITEM_LEFT -->
<div class ="item">
<img style="float:left; margin-right:15px; border:1px Solid #000; width:200px; height:155px;" src="images/fishsandwich.jpg">
<h1>Fish Sandwich - $8.50</h1>
<input name="item" type="hidden" value="Fish Sandwich"/>
<h2>How Many? <font color="#999999">Ex: 1, 2, 3...?</font></h2>
<input name="quantity" type="text"/>
<h3>Customize It? <font color="#999999">Ex: No Lettuce, Extra Cheese...</font></h3>
<textarea name="customize"/></textarea>
</div><!-- ITEM_LEFT -->
<div class ="item">
<img style="float:left; margin-right:15px; border:1px Solid #000; width:200px; height:155px;" src="images/hamburgers.jpg">
<h1>Hamburger w/ Fries - $7.00</h1>
<input name="item" type="hidden" value="Fish Sandwich"/>
<h2>How Many? <font color="#999999">Ex: 1, 2, 3...?</font></h2>
<input name="quantity" type="text"/>
<h3>Customize It? <font color="#999999">Ex: No Lettuce, Extra Cheese...</font></h3>
<textarea name="customize"/></textarea>
</div><!-- ITEM_LEFT -->
<div class="horizontal_form">
<div class="form">
<h2>Place Your Order Now: <font size="3"><font color="#037B41">Fill in the form below, and we'll call you when your food is ready to be picked up...</font></font></h2>
<p class="name">
<input type="text" name="name" id="name" style="text-align:center;" onClick="this.value='';" value="Enter your name"/>
</p>
<p class="phone">
<input type="text" name="phone" id="phone" style="text-align:center;" onClick="this.value='';" value="Enter your phone #"/>
</p>
<p class="submit">
<input type="submit" value="Place Order" name="submit"/>
</p>
</div><!-- FORM -->
</div><!-- HORIZONTAL_FORM -->
</form>
我建议您使用"[]"，因为它将多个输入字段分组到一个数组中。
<?php
if ($_SERVER['REQUEST_METHOD'] == 'POST') {
$_POST = filter_input_array(INPUT_POST, FILTER_SANITIZE_SPECIAL_CHARS);
$to = "test@mywebsite.com";
$subject = "New Order";
$order = array();
$order['name'] = $_POST['name'];
$order['phone'] = $_POST['phone'];
$food = $_POST['food'];
foreach ($food as $type => $value)
if (strlen($value['quantity']) > 0) // assuming 'customize' is optional
$order[$type] = $value;
print_r($order);
}
?>
<html>
<head>
<title>Order now!</title>
<style>label,input,textarea {display:block}</style>
<body>
<?php // You need enctype for '[]' support' ?>
<form action="" method="post" enctype="multipart/form-data">
<div class ="item">
<label>Mexican Torta - $8.50</label>
<b>How Many?</b>
<input name="food[mexican_torta][quantity]" type="text">
<b>Customize It? <font color="#999999">Ex: No Lettuce, Extra Cheese...</font></b>
<textarea name="food[mexican_torta][customize]"></textarea>
</div>
<div class ="item">
<label>Fish - $3.50</label>
<b>How Many?</b>
<input name="food[fish][quantity]" type="text">
<b>Customize It? <font color="#999999">Ex: No Lettuce, Extra Cheese...</font></b>
<textarea name="food[fish][customize]"></textarea>
</div>
<h2>Place Your Order Now:</h2>
<em>Fill in the form below, and we'll call you when your food is ready to be picked up.</em>
<label>Enter your name</label>
<input type="text" name="name">
<label>Enter your phone nr.</label>
<input type="text" name="phone">
<button>Submit</button>
</form>
</body>
用户提交（例如，我将fish留空），您将获得
Array (
[name] => Fab
[phone] => 1212
[mexican_torta] => Array ( [quantity] => 2 [customize] => Test )
)
使用"[]"可以获得您真正想要的数组输出。print_r会准确地显示你得到了什么。从这里可以很容易地将食物的详细信息放入电子邮件
您需要唯一的表单字段名称。换句话说，你不能有重复的项目的形式：
<input name="quantity" type="text"/>
相反，您需要唯一的名称，例如：
<input name="quantity_fish" type="text"/>
然后，您可以使用PHP解析$_POST，并根据需要抛出空字段。