Ajax数据主机无法到达发布的url

Question

我试图将数据发布到一个只包含php代码的php站点，该代码应在ID #mR-RateableFramePicture在第一页上被单击时执行。这是由一个ajax请求完成的：

    $('#mR-RateableFramePicture').dblclick(function() {
        $.ajax({
            type: "POST",
            url: 'moduleRateable/scriptSavedStyle.php',
            data: { rateableUserID: rateableUserID, rateablePictureID: rateablePictureID},
            success: function() {
                $('#DynamicContent').load('moduleRateable/scriptSavedStyle.php');
            }
        });
    });

    var rateableUserID = $('input[name="rateableUserID"]').val();
    var rateablePictureID = $('input[name="rateablePictureID"]').val();

下面是ajax发布到的url目标：

<?php
// Start the session (enable global $_SESSION variable).
session_start();

// Include database-link ($conn).
include '../../scriptMysqli.php';

// Make global variable to simple variable.
$userID = $_SESSION["ID"];

//Save the rateable style to one owns libary of saved styles.    
$ratedUserID = $_POST['rateableUserID'];
$ratedPictureID = $_POST['rateablePictureID'];


$sql = $conn->query("UPDATE styles WHERE userID = '$ratedUserID;' AND 
pictureID = '$ratedPictureID' SET savedByUser = '$userID'");

?>

我收到以下错误消息：

注意:未定义的索引:第12行的C:\xampp\htdocs\mystyle\app\moduleRateable\scriptSavedStyle.php中的rateableUserID

注意:未定义的索引:第13行的C:\xampp\htdocs\mystyle\app\moduleRateable\scriptSavedStyle.php中的rateablePictureID

Answer 1

您没有像下面这样在$.ajax({})调用中传递变量rateableUserID和rateablePictureID的值-

data: { rateableUserID: rateableUserID, rateablePictureID: rateablePictureID}。除非它们是全局定义的，否则您将在PHP end.Make中获得未定义的值。在调用之前，请确保您已将该值赋给了rateableUserID和rateablePictureID。但是，您仍然必须检查是否确实在post请求中传递了该变量，因为PHP找不到键名。

该函数应如下所示

$('#mR-RateableFramePicture').dblclick(function() {
     var rateableUserID = $('input[name="rateableUserID"]').val();
     var rateablePictureID = $('input[name="rateablePictureID"]').val();

        $.ajax({
            type: "POST",
            url: 'moduleRateable/scriptSavedStyle.php',
            data: { "rateableUserID": rateableUserID, "rateablePictureID": rateablePictureID},
            success: function() {
                $('#DynamicContent').load('moduleRateable/scriptSavedStyle.php');
            }
        });
    });