How does the script handle user permissions and access levels for different categories and subcategories?

To handle user permissions and access levels for different categories and subcategories, you can create a role-based access control system where each user is assigned a specific role with corresponding permissions. This can be implemented by checking the user's role before allowing access to certain categories or subcategories in the script. 

// Check user role before accessing categories or subcategories
$userRole = 'admin'; // Assume user role is 'admin'

if ($userRole == 'admin') {
    // Allow access to all categories and subcategories
    echo "User has access to all categories and subcategories.";
} else {
    // Deny access to certain categories or subcategories
    echo "User does not have access to all categories and subcategories.";
}

Keywords

PHP user permissions access levels categories subcategories

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