How can the session variable be properly managed to allow access to restricted content in PHP?

To properly manage the session variable for accessing restricted content in PHP, you need to set a session variable upon successful authentication and check for this session variable before granting access to the restricted content. This ensures that only authenticated users can access the restricted content. 

// Start the session
session_start();

// Check if the user is authenticated
if(isset($_SESSION['authenticated']) && $_SESSION['authenticated'] === true) {
    // User is authenticated, allow access to restricted content
    echo "Welcome to the restricted content!";
} else {
    // User is not authenticated, redirect to login page
    header("Location: login.php");
    exit();
}

Keywords

session variable access control restricted content PHP management

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