When it comes to PHP website backend management, the code usually involves tasks such as user authentication, permission control, data management, and more. Below is a simple example:

Handling User Authentication (login.php)

<?php
session_start();
$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Establish a connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

if (isset($_POST['submit'])) {
    $user = $_POST['username'];
    $pass = $_POST['password'];

    $sql = "SELECT * FROM users WHERE username='$user' AND password='$pass'";
    $result = $conn->query($sql);

    if ($result->num_rows > 0) {
        $_SESSION['username'] = $user;
        header('Location: dashboard.php');
    } else {
        echo "Username or password is incorrect";
    }
}
?>

Implementing Permission Control (dashboard.php)

<?php
session_start();

if (!isset($_SESSION['username'])) {
    header('Location: login.php');
}
?>



    


    
Welcome, <?php echo $_SESSION['username']; ?>!
    

Managing Data (data_management.php)

<?php
session_start();

if (!isset($_SESSION['username'])) {
    header('Location: login.php');
}

$servername = "localhost";
$username = "username";
$password = "password";
$dbname = "myDB";

// Establish a connection
$conn = new mysqli($servername, $username, $password, $dbname);

// Check connection
if ($conn->connect_error) {
    die("Connection failed: " . $conn->connect_error);
}

// Query data
$sql = "SELECT id, name, email FROM users";
$result = $conn->query($sql);

if ($result->num_rows > 0) {
    // Output data
    while ($row = $result->fetch_assoc()) {
        echo "id: " . $row["id"] . " Name: " . $row["name"] . " Email: " . $row["email"] . "
";
    }
} else {
    echo "0 results";
}

$conn->close();
?>

In practice, the code provided above is for reference only and should be adjusted according to specific requirements.

Enhancing Website Backend Management

1. View user list

2. Add new user

3. Edit user information

4. Delete user

5. View logs

Below is an example of HTML and PHP code presenting these functionalities:

Make sure to follow best practices when deploying any web-based application, especially when handling user data and database interactions. The provided code examples have omitted database connection and query execution for brevity, as these typically involve more configuration and security considerations. In a production environment, use prepared statements to prevent SQL injection and validate/clean user input.

Thank you for reading and feel free to leave comments, follow for more updates, like the content, and thank you for your attention!

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