Webmail mail login php

Here is an example of a simple webmail login system using PHP:

index.php

<?php
session_start();

// Configuration
$db_host = 'localhost';
$db_username = 'your_username';
$db_password = 'your_password';
$db_name = 'your_database';

// Connect to database
$conn = new mysqli($db_host, $db_username, $db_password, $db_name);

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

// Login form submission
if (isset($_POST['submit'])) {
    $username = $_POST['username'];
    $password = $_POST['password'];

    // Query to check username and password
    $query = "SELECT * FROM users WHERE username='$username' AND password='$password'";
    $result = $conn->query($query);

    if ($result->num_rows > 0) {
        // Login successful, start session
        $_SESSION['username'] = $username;
        header('Location: inbox.php');
        exit;
    } else {
        $error = 'Invalid username or password';
    }
}

// Display login form
?>

<form action="<?php echo $_SERVER['PHP_SELF'];?>" method="post">
    <label for="username">Username:</label>
    <input type="text" id="username" name="username"><br><br>
    <label for="password">Password:</label>
    <input type="password" id="password" name="password"><br><br>
    <input type="submit" name="submit" value="Login">
</form>

<?php if (isset($error)) {?>
    <p style="color: red;"><?php echo $error;?></p>
<?php }?>

inbox.php

<?php
session_start();

// Check if user is logged in
if (!isset($_SESSION['username'])) {
    header('Location: index.php');
    exit;
}

// Display inbox
?>

<h1>Inbox</h1>

<?php
// Query to retrieve emails
$query = "SELECT * FROM emails WHERE recipient='".$_SESSION['username']."' ORDER BY date DESC";
$result = $conn->query($query);

if ($result->num_rows > 0) {
    while ($row = $result->fetch_assoc()) {
        echo '<p>'.$row['subject'].': '.$row['message'].'</p>';
    }
} else {
    echo '<p>No emails found.</p>';
}
?>

emails table structure

CREATE TABLE emails (
    id INT PRIMARY KEY AUTO_INCREMENT,
    sender VARCHAR(255),
    recipient VARCHAR(255),
    subject VARCHAR(255),
    message TEXT,
    date TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

users table structure

CREATE TABLE users (
    id INT PRIMARY KEY AUTO_INCREMENT,
    username VARCHAR(255),
    password VARCHAR(255)
);

This is a very basic example and you should consider implementing additional security measures such as:

Hashing passwords using a library like PHPass
Validating user input
Using prepared statements to prevent SQL injection
Implementing a secure password reset system
Using a secure connection (HTTPS) to encrypt data in transit

Also, this example assumes that you have a users table with a username and password column, and an emails table with columns for sender, recipient, subject, message, and date. You will need to modify the code to match your specific database schema.

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Webmail mail login php