Question

我在functions.php中创建了三个函数，一个在数据库中创建列，另一个在datatable中显示它们的函数都工作正常，但删除函数给我错误未定义索引：id

function show()
{
    global $connection;
    //select queries into database
    $query = "SELECT * FROM employees";
    //connect query with database
    $result = mysqli_query($connection,$query);
    while ($row = mysqli_fetch_assoc($result)) {
        $id = $row['id'];
        $name = $row['name'];
        $email = $row['email'];
        $address = $row['address'];
        $phone = $row['phone'];
        echo "<tr>
            <td>
                <span class='custom-checkbox'>
                    <input type='checkbox' id='checkbox1' name='options[]' value='1'>
                    <label for='checkbox1'></label>
                </span>
            </td>
            <td>$id</td>
            <td>$name</td>
            <td>$email</td>
            <td>$address</td>
            <td>$phone</td>
            <td>
                <a href='#editEmployeeModal' class='edit' data-toggle='modal'><i class='material-icons' data-toggle='tooltip' title='Edit'>&#xE254;</i></a>
                <a href='#deleteEmployeeModal' class='delete' data-toggle='modal'><i class='material-icons' data-toggle='tooltip' title='Delete'>&#xE872;</i></a>
            </td>
        </tr>";
    }
}
function create()
{
    global $connection; 
    $name =  $_POST['name'];
    $email = $_POST['email'];
    $address = $_POST['address'];
    $phone =  $_POST['phone'];

    $query = $query = "INSERT INTO employees(name, email, address, phone) VALUES ('$name', '$email', '$address', '$phone')";
    $result = mysqli_query($connection, $query);
}
function delete(){
    global $connection;
    $id = $_POST['id'];
    $query = "DELETE FROM employees ";
    $query .= "WHERE id = $id ";
    mysqli_query($connection,$query);
} 
?>

在另一个index.php文件中调用所有这些函数

if (isset($_POST['submit'])) {
create();
}


if (isset($_POST['delete'])) {
    delete();
    echo "it works";
}

这是index.php文件中的模态删除

<div id="deleteEmployeeModal" class="modal fade">
    <div class="modal-dialog">
        <div class="modal-content">
            <form method="post" action="index.php">
                <div class="modal-header">                      
                    <h4 class="modal-title">Delete Employee</h4>
                    <button type="button" class="close" data-dismiss="modal" aria-hidden="true">&times;</button>
                </div>
                <div class="modal-body">                    
                    <p>Are you sure you want to delete these Records?</p>
                    <p class="text-warning"><small>This action cannot be undone.</small></p>
                </div>
                <div class="modal-footer">
                    <input type="button" class="btn btn-default" data-dismiss="modal" value="Cancel">
                    <input type="submit" class="btn btn-danger" name="delete" name="delete" value="Delete">
                </div>
            </form>
        </div>
    </div>
</div>

未定义的索引：在datatable中删除时的id

0 个答案: