无法更新表格（PHP，AJAX）[关闭]

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                    <p class="mb0 mt6">Closed <span title="2020-04-21 23:55:31Z" class="relativetime">5 days ago</span>.</p>
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I have tried almost all options, but every time after I change value of table and then click anywhere, I get this warning:
Notice: Undefined index: id in C:\xampp\htdocs\edit.php on line 3

Function code:

function edit_data(id, text, column_name)  
    {  
        $.ajax({  
            url:"edit.php",  
            method:"POST",  
            data:{ID:id, text:text, column_name:column_name},  
            dataType:"text",  
            success:function(data){  
                alert(data);
                $('#result').html("<div class='alert alert-success'>"+data+"</div>");
            }  
        });  
    }  
    $(document).on('blur', '.Ime', function(){  
        var id = $(this).data("id1");  
        var Ime = $(this).text();  
        edit_data(id, Ime, "Ime");  
    });  
    $(document).on('blur', '.Prezime', function(){  
        var id = $(this).data("id2");  
        var Prezime = $(this).text();  
        edit_data(id,Prezime, "Prezime");  
    });
    $(document).on('blur', '.Email', function(){  
        var id = $(this).data("id3");  
        var Email = $(this).text();  
        edit_data(id,Email, "Email");  
    });
    $(document).on('blur', '.Adresa', function(){  
        var id = $(this).data("id4");  
        var Adresa = $(this).text();  
        edit_data(id,Adresa, "Adresa");  
    });
    $(document).on('blur', '.BrojKuce', function(){  
        var id = $(this).data("id5");  
        var BrojKuce = $(this).text();  
        edit_data(id,BrojKuce, "BrojKuce");  
    });
    $(document).on('blur', '.PostanskiBroj', function(){  
        var id = $(this).data("id6");  
        var PostanskiBroj = $(this).text();  
        edit_data(id,PostanskiBroj, "PostanskiBroj");  
    });

edit.php code:

<?php  
$connect = mysqli_connect("localhost", "root", "", "testbaza");
$id = $_POST['id'];  
$text = $_POST['text'];  
$column_name = $_POST['column_name'];
$sql = "UPDATE korisnicibrojeva SET '$column_name' = '$text'  WHERE ID= '$id'" ;  
if(mysqli_query($connect, $sql))  
{  
    echo 'Data Updated';  
} ?> 

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