Php 多次发布表单数组

我有一个包含许多复选框的HTML表单。当用户单击submit按钮时，将发布选中的数组，并根据该结果运行查询。 我有一个按钮，允许用户在将保存的结果插入另一个表时保存结果。 但这意味着我需要再次发布表单结果，但它不允许我这样做。我该如何解决这个问题

PHP代码

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你可以使用ajax。我该怎么做呢？你能把你想在首次提交时调用的部分和其他部分分开，以便更好地理解吗“

$value从何而来？您是否已将url从

url:'test1.php'，

更改为您的oneIm，我被告知通知：未定义索引：sporton什么行号？$arr\u class=$\u POST[“sport”]；你选择了什么运动项目吗？

<?php

if (isset($_POST['submit']) && isset($_POST['sport'])) {
    $class = $_POST["sport"];
    foreach ($class As $key => $value) {
        $query = "SELECT *
FROM sport b
join sport a
on a.Tag = b.Name
where a.SportID<> b.SportID and a.Tag = '$value'";

        $result = mysqli_query($con, $query) or die("Invalid Query");

        while ($row = mysqli_fetch_assoc($result)) {

            echo "* $row[Name]\n";
        }
    }
} else if (isset($_POST['saved'])) {


    $arr_class = $_POST["sport"];


    foreach ($arr_class As $key => $newvalue) {

        $query2 = "INSERT INTO save (Username, Name)
    SELECT '$username', b.Name
    FROM sport b 
    JOIN sport a 
    on a.Tag = b.Name
    where a.SportID <> b.SportID 
    and a.Name = '$newvalue'";

        $result2 = mysqli_query($con, $query2) or die('Result could not be saved!');


    }
    echo 'Result saved!';
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript">
    $(document).ready(function(){
        $('.submit-button').click(function (ev) {
            var $item = $(this);
            var formData  = $('form').serialize();
            $.ajax({
                data: formData+'&submit=submit',
                url:'test1.php',
                type: "POST",
                dataType: "html",
                success:function (data) {
                    console.log(data);
                    if(confirm('You want to save \n'+data+ ' as your sport')){
                        $.ajax({
                            data: formData+'&saved=saved',
                            url:'test1.php',
                            type: "POST",
                            dataType: "html",
                            success:function (data) {
                                console.log(data);
                            }
                        });
                    }
                }
            });
        });
    });
</script>

<form id="form" action="" method="post">
    <input type="checkbox" name="sport[]" value="Football">Football<br>
    <input type="checkbox" name="sport[]" value="Rugby">Rugby<br>
    <input type="checkbox" name="sport[]" value="Golf">Golf<br>
    <input type="checkbox" name="sport[]" value="Basketball">Basketball<br>

    <br> <input type="button" class="submit-button btn btn-info" name="submit" value="submit">
    <input type="submit" style="display:none;">
</form>