In PHP development, what are some common strategies for handling user authentication and session management to ensure data integrity during order processing?

To ensure data integrity during order processing, common strategies for handling user authentication and session management in PHP development include using secure login mechanisms, encrypting sensitive data, and implementing session tokens to validate user sessions. 

// Example code snippet for handling user authentication and session management in PHP

// Start session
session_start();

// Check if user is logged in
if(!isset($_SESSION['user_id'])) {
    // Redirect user to login page
    header("Location: login.php");
    exit();
}

// Validate user session
if($_SESSION['session_token'] !== hash('sha256', $_SESSION['user_id'] . $_SESSION['user_agent'])) {
    // Destroy session and redirect user to login page
    session_destroy();
    header("Location: login.php");
    exit();
}

Keywords

User authentication session management data integrity order processing PHP development

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