What are some best practices for maintaining user authentication and authorization in PHP-based web applications like Joomla?

Issue: Maintaining user authentication and authorization in PHP-based web applications like Joomla is crucial for ensuring the security and integrity of the system. Best practices include using secure hashing algorithms for storing passwords, implementing role-based access control, and regularly updating user credentials. Code snippet: 

// Securely hash and store user passwords
$password = 'password123';
$hashed_password = password_hash($password, PASSWORD_DEFAULT);

// Implement role-based access control
$user_role = 'admin';
$allowed_roles = ['admin', 'editor'];

if(in_array($user_role, $allowed_roles)){
    // User has permission to access this resource
    echo 'Access granted';
} else {
    // User does not have permission
    echo 'Access denied';
}

// Regularly update user credentials
// Example: Update user password
$new_password = 'newpassword456';
$updated_hashed_password = password_hash($new_password, PASSWORD_DEFAULT);

Keywords

PHP user authentication user authorization Joomla web applications

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