In what ways can PHP developers prevent unauthorized access to user accounts when sharing URLs with session IDs?

PHP developers can prevent unauthorized access to user accounts when sharing URLs with session IDs by implementing proper session management techniques. One way to achieve this is by using session_regenerate_id() to generate a new session ID after a successful login, ensuring that the old session ID becomes invalid. Additionally, developers should always validate user permissions before granting access to sensitive information or actions. 

// Start the session
session_start();

// Check if user is logged in
if(isset($_SESSION['user_id'])) {
    // Regenerate session ID
    session_regenerate_id();

    // Validate user permissions
    if($_SESSION['user_role'] == 'admin') {
        // Grant access to sensitive information or actions
    } else {
        // Redirect to unauthorized page
        header('Location: unauthorized.php');
        exit();
    }
} else {
    // Redirect to login page
    header('Location: login.php');
    exit();
}

Keywords

PHP session IDs authentication access control URL sharing

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