What are the best practices for implementing user authentication and file access control in a PHP-based CMS?

To implement user authentication and file access control in a PHP-based CMS, it is important to use secure authentication methods such as password hashing and salting. Additionally, access control should be implemented by checking user roles and permissions before allowing file access. 

// User authentication
$password = $_POST['password'];
$hashed_password = password_hash($password, PASSWORD_DEFAULT);

// File access control
if ($user->role == 'admin') {
    // Allow file access
} else {
    // Deny file access
}

Keywords

authentication file access control PHP-based CMS security permissions

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