{$zfdz}

自定义一个数字，前台调用出来了，做了js代码，点一次增加一次，怎么样把这个前台增加的数字存储到后台这个字段里呢

<button class="btn">
<span style="margin-top:50px;" >已点<p class="likes" class="p">{$zfdz}</p>次</span>
    </button>


	<script type="text/javascript">
 $(function () {
        $("img").click(function () {
            var num = $(this).next().text();
            num++;
            $(this).next().text(num);
            $('.hearts-canvas').addClass('clicked');
            setTimeout(function () {
                $('.hearts-canvas').removeClass('clicked');
            }, 500);

            // 发送 Ajax 请求
            $.ajax({
                type: "POST",
                url: "save_likes.php",
                data: {
                    likes: num
                },
                success: function (response) {
                    console.log(response);
                },
                error: function (xhr, status, error) {
                    console.log(xhr.responseText);
                }
            });
        });

        $('.btn').click(function () {
            var num = $('.likes').eq(0).text();
            num++;
            $('.likes').eq(0).text(num);
            $('.hearts-canvas').addClass('clicked');
            setTimeout(function () {
                $('.hearts-canvas').removeClass('clicked');
            }, 500);

            // 发送 Ajax 请求
            $.ajax({
                type: "POST",
                url: "save_likes.php",
                data: {
                    likes: num
                },
                success: function (response) {
                    console.log(response);
                },
                error: function (xhr, status, error) {
                    console.log(xhr.responseText);
                }
            });

            // 更新自定义字段
            $.ajax({
                type: "POST",
                url: "update_zfdz.php",
                data: {
                    zfdz: num
                },
                success: function (response) {
                    console.log(response);
                },
                error: function (xhr, status, error) {
                    console.log(xhr.responseText);
                }
            });
        });
    });





</script>



​<?php
// 获取用户点赞的次数
$likes = $_POST['likes'];

// 将点赞的次数写入文件或数据库中，这里假设写入数据库中
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 构造 SQL 语句
$sql = "UPDATE likes SET likes=$likes WHERE id=1";

// 执行 SQL 语句
if ($conn->query($sql) === TRUE) {
    echo "点赞次数已更新";
} else {
    echo "更新失败: " . $conn->error;
}

$conn->close();
?>
<?php
// 获取自定义字段的值
$zfdz = $_POST['zfdz'];

// 将自定义字段的值写入文件或数据库中，这里假设写入数据库中
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// 创建连接
$conn = new mysqli($servername, $username, $password, $dbname);

// 检查连接是否成功
if ($conn->connect_error) {
    die("连接失败: " . $conn->connect_error);
}

// 构造 SQL 语句
$sql = "UPDATE zfdz SET zfdz=$zfdz WHERE id=1";

// 执行 SQL 语句
if ($conn->query($sql) === TRUE) {
    echo "自定义字段已更新";
} else {
    echo "更新失败: " . $conn->error;
}

$conn->close();
?>
两个php文件写的是否对，应该放在哪个目录下呢 这里吗？/dayrui/App/我的模块/Controllers/