What are the steps involved in creating a custom login form for directory protection in PHP?

Directory protection in PHP can be achieved by creating a custom login form that prompts users to enter a username and password before accessing the protected directory. This can be done by using PHP sessions to store login credentials and checking them against a predefined set of username and password. Below is a sample code snippet that demonstrates how to create a custom login form for directory protection in PHP: 

<?php
session_start();

$valid_username = "admin";
$valid_password = "password";

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

    if($username == $valid_username && $password == $valid_password){
        $_SESSION['logged_in'] = true;
        header("Location: protected_directory.php");
        exit();
    } else {
        echo "Invalid username or password";
    }
}
?>

<!DOCTYPE html>
<html>
<head>
    <title>Login Form</title>
</head>
<body>
    <h2>Login Form</h2>
    <form method="post" action="">
        <label for="username">Username:</label><br>
        <input type="text" id="username" name="username"><br><br>
        <label for="password">Password:</label><br>
        <input type="password" id="password" name="password"><br><br>
        <input type="submit" name="submit" value="Login">
    </form>
</body>
</html>

Keywords

PHP custom login form directory protection authentication session management

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