本文介绍了我如何乘以价格和金额？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
如何将价格乘以金额并在显示的代码中显示如下：
require（' connect.php'）;
session_start（）;
// 如果值已过帐，请将它们插入数据库。
if （isset（$ _ POST [' ProductID']）&& isset（$ _ POST [' Color']）&& isset（$ _ POST [' Price']）&& isset（$ _ POST [' Amount']））{
$ ProductID = trim（$ _ POST [' ProductID']）;
$ Color = trim（$ _ POST [' 颜色]）;
$ Amount = trim（$ _ POST [' 金额]）;
$ Price = trim（$ _ POST [' 价格']）;
$ headers = 来自Awesome先生;
$ headers2 = 表单副本提交;
$ query = INSERT INTO`quartformdata`（ProductID，Color，Amount，Price）VALUES（'$ ProductID'，'$ Color'，'$ Amount'，'$ Price'）;
$ result = mysql_query（$ query）;
if（$ result）{
if（isset（$ _ POST [' submit']））{
mail（$ Color，$ Amount，$ headers）;
}
}
}
？>
<！DOCTYPE html>
< head>
< title>订单< / title>
< link href =css / style.cssmedia =screen =stylesheettype =text / css/>
< link rel =stylesheethref =css / custom.css/>
< script src =// code.jquery.com/jquery-1.9.1.js\"></script>
< script src =// ajax.aspnetcdn.com/ajax/jquery.validate/1.9/jquery.validate.min.js\"></script>
< link rel =stylesheethref =buttons.css>
< / head>
< body>
$ _SESSION ['link'] = $ _POST ['link'];
echo'< img src ='。$ _ SESSION ['link']。'>';
？>
订单
< form action =method =postid =register-表格novalidate =novalidate>
ProductID：< input type =textname =ProductIDid =ProductID>
颜色：< input type =textname =Colorid =Color>
金额：< input type =numbername =Amountid =Amount>
价格：echo''。$ _ SESSION ['price']。'';
？>
< input type =submitname =submitvalue =Submitclass =button>
< / form>
< script>
//当浏览器准备就绪时...
$（function（）{
//＃register-form element $ b上的设置表单验证$ b $（＃register-form）。validate（{
//指定验证规则
规则：{
颜色： {
required：
}，
金额：{
required：true，
integer：true，
}，
}，
产品ID：必需，
}，
//指定验证错误消息
消息：{
颜色：请输入有效颜色，
产品ID：请输入ID，
金额：请输入有效金额，
}，
submitHandler：function（form）{
form.submit（）;
}
}）;
}）;
< / script>
< / body>
< / html>
请帮助我:)）
解决方案
How to multiply the price with the amount and show it below in the code shown:
require('connect.php'); session_start(); // If the values are posted, insert them into the database. if (isset($_POST['ProductID']) && isset($_POST['Color']) && isset($_POST['Price']) && isset($_POST['Amount'])){ $ProductID = trim($_POST['ProductID']); $Color = trim($_POST['Color']); $Amount = trim($_POST['Amount']); $Price = trim($_POST['Price']); $headers = "From Mr Awesome"; $headers2 = "Copy of your form submission"; $query = "INSERT INTO `orderformdata` (ProductID, Color, Amount, Price) VALUES ('$ProductID', '$Color','$Amount','$Price')"; $result = mysql_query($query); if($result){ if(isset($_POST['submit'])){ mail($Color, $Amount, $headers); } } } ?>
<!DOCTYPE html>
<head>
<title>Order</title>
<link href="css/style.css" media="screen" rel="stylesheet" type="text/css" />
<link rel="stylesheet" href="css/custom.css" />
<script src="//code.jquery.com/jquery-1.9.1.js"></script>
<script src="//ajax.aspnetcdn.com/ajax/jquery.validate/1.9/jquery.validate.min.js"></script>
<link rel="stylesheet" href="buttons.css">
</head>
<body>
$_SESSION['link'] = $_POST['link'];
echo '<img src="'.$_SESSION['link'] .'">';
?>
Order
<form action="" method="post" id="register-form" novalidate="novalidate">
ProductID: <input type="text" name="ProductID" id="ProductID">
Color: <input type="text" name="Color" id="Color">
Amount: <input type="number" name="Amount" id="Amount">
Price: echo ''.$_SESSION['price'].'';
?>
<input type="submit" name="submit" value="Submit" class="button">
</form>
<script>
// When the browser is ready...
$(function() {
// Setup form validation on the #register-form element
$("#register-form").validate({
// Specify the validation rules
rules: {
Color: {
required: true,
},
Amount: {
required: true,
integer: true,
},
},
ProductID: "required",
},
// Specify the validation error messages
messages: {
Color: "Please enter a valid color",
ProductID: "Please enter a ID",
Amount: "Please enter a valid Amount",
},
submitHandler: function(form) {
form.submit();
}
});
});
</script>
</body>
</html>
Help me please :)
解决方案
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