In PHP, what alternative database design strategies can be implemented to simplify user clearance checks for image access control beyond the current system based on clearances and separate fields like cfriend and cfamily?

The issue with the current system based on clearances and separate fields like cfriend and cfamily is that it can become complex and difficult to manage as the number of user roles and clearances increases. To simplify user clearance checks for image access control, an alternative database design strategy could involve implementing a role-based access control (RBAC) system. This would involve assigning users to roles, which have specific permissions to access certain resources like images. 

// Implementing Role-Based Access Control (RBAC) in PHP

// Define roles and their corresponding permissions
$roles = [
    'admin' => ['view_images', 'delete_images', 'edit_images'],
    'user' => ['view_images']
];

// Assign roles to users
$users = [
    'john_doe' => ['admin'],
    'jane_smith' => ['user']
];

// Function to check if a user has permission to access an image
function checkImageAccess($user, $image, $roles, $users) {
    foreach ($users[$user] as $role) {
        if (in_array('view_images', $roles[$role])) {
            return true;
        }
    }
    return false;
}

// Example usage
$user = 'john_doe';
$image = 'image1.jpg';

if (checkImageAccess($user, $image, $roles, $users)) {
    echo "User has permission to access image.";
} else {
    echo "User does not have permission to access image.";
}

Keywords

database design user clearance image access control PHP functions permissions

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