Question

I have a table filled with data from my database, and i want a button next to it for each specific user to delete that user. but how do i do this?

Here’s the code:

<?php               
    include '../includes/db_connect.php';

    $sql = "SELECT * FROM `users`";
    $result = mysql_query($sql, $connection) or die ("Failed to excecute the query $sql on $connection");
?>
<table border=1>
    <tr>
        <th>
        Access lvl
        </th>
        <th>
        Username
        </th>
        <th>
        Email
        </th>
    </tr>
<?php
    while($row = mysql_fetch_array($result))
    {
        echo "</td><td>";
        echo $row['access'];
        echo "</td><td>";
        echo $row['username'];
        echo "</td><td>";
        echo $row['email'];
        echo "</td></tr>";
    }
    echo "</table>";
?>

Answer 1

I do this very often and use jQuery for it. I use the following:

HTML:

<table>
....
<tr>
    <td><span class="delete">Delete me!</span></td>
</tr>
</table>

jQuery:

$(document).on("click", ".delete", function(event)
{
    var sData = "?id=" + $(this).data("id");
    $.ajax({
        url: "pages/delete_script.php",
        type: "POST",
        data: sData,
        success: function(sResult)
        {
            // Process the data you got back from the delete script
            // For example removing the row if successfully deleted:
            if(sResult == "OK")
            {
                $(this).closest("tr").remove();
            }
        },
        statusCode: 
        {
            404: function() 
            {
                alert("page not found");
            }
        }
    });
});

The on() is for the dynamic elements (I do everything with AJAX on that page). Then I put the data I need to send in the correct format and do the AJAX request. In the PHP file could be this:

if($_SERVER['REQUEST_METHOD'] == "POST")
{
    if(isset($_POST['id'])
    {
        mysql_query(
            sprintf('DELETE FROM `table` WHERE `id` = %d', $_POST['id'])
        );
    }
}

Of course it’s recommended to use more checks to make sure you remove the right one.