使用AJAX发送数据但PHP输出undefined_index

Question

这可能已经得到了解答，但我似乎无法找到解决方案。 我很确定我已经在互联网上了。

我正在尝试使用AJAX从表单发送邮件。 AJAX脚本似乎工作正常。 这是代码：

$("#order").submit(function(e) {
    e.preventDefault();
    $(".loading-text").fadeIn("500");
    var title = $("input#title").val();
    var price = $("input#price").val();
    var name = $("input#name").val();
    var email = $("input#email").val();
    var phone = $("input#phone").val();
    var address = $("input#address").val();
    var urgency = $("input#urgency").val();

    $.ajax({
        url: "assets/order.php",
        type: "POST",
        dataType: "json",
        data: {
            title: title,
            price: price,
            name: name,
            email: email,
            phone: phone,
            address: address,
            urgency: urgency
        },
        cache: false,
        processData: false,

        success: function(data) {
        $(".loading-text").fadeOut("300");
        $(".success-text").fadeIn("500").append(data);
        },

        error: function(data) {
            $(".loading-text").fadeOut("300");
            $(".failure-text").fadeIn("500").append(data);
        }
    });
});

然而，它返回所有变量的undefined_index。 这是PHP脚本：

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
 $name = htmlspecialchars($_POST['name']);
 $email = filter_var($_POST['email'], FILTER_SANITIZE_EMAIL);
 $title = htmlspecialchars($_POST['title']);
 $price = htmlspecialchars($_POST['price']);
 $phone = htmlspecialchars($_POST['phone']);
 $address = htmlspecialchars($_POST['address']);
 $urgency = htmlspecialchars($_POST['urgency']);
 $to1 = "jerryasih@gmail.com";
 $to2 = "shalomdickson@yahoo.com";
 $subject = "New order received!";

$msg_stalker = "Hello STALKER! New order received.\n\n"."Here are the details:\n"."Name: $name\n\nAddress: $address\n\nEmail: $email\n\nPhone number: $phone\n\nItem: $title\n\nPrice: $price\n\nThis customer needs their service/product in $urgency hours.";
$msg_owner = "Hello! Your store on STALKER! has a new order.\n\n"."Details:\n"."Item: $title\n\nPrice: $price\n\nThis customer needs their service/product in $urgency hours."."You may contact us on hoodstalker@yahoo.com if item is unavailable or for any other query.\n\nExpect us soon.\n\nWe've got your back! ;)";
$from = "Order form at (stores.neighbourhoodstalker.com)";

if (empty($name) || empty($address) || empty($phone)) {
    http_response_code(400);
    echo "Error! Please check that all required fields have been filled and try again.";
    exit;
}

if(mail($to1, $subject, $msg_stalker, 'From: '.$from) && mail($to2, $subject, $msg_owner, 'From: '.$from)) {
    http_response_code(200);
    echo "Order placed successfully.";
}
else {
    http_response_code(500);
    echo "Something went wrong. Check your internet connection and try again.";
}
}
else {
  http_response_code(403);
  echo "There was a problem with your submission. Please try again.";
 }
?>

我不确定问题现在在哪里，因为我使用类似的代码来处理文件上传器并且它工作得很好。

Answer 1

问题是因为AJAX中的这个设置，

processData: false,

从文档中 ，

processData （默认值： true ）

类型：布尔值

默认情况下， data到数据选项传递作为一个对象（在技术上，不是字符串其它任何东西）将被处理并转换成一个查询字符串，以适应默认内容类型的“application / X WWW的窗体-urlencoded” 。 如果要发送DOMDocument或其他未处理的数据，请将此选项设置为false 。

由于您没有发送任何DOMDocument或未处理的数据，因此请从您的AJAX请求中删除此设置processData: false 。

Answer 2

你使用了错误的dataType。 使用dataType：“json”。

http://api.jquery.com/jquery.ajax/