How important is it to separate business logic from presentation in the development of an Intranet using PHP?

It is crucial to separate business logic from presentation in the development of an Intranet using PHP to ensure code maintainability, scalability, and reusability. By separating these concerns, it becomes easier to make changes to the business logic without affecting the presentation layer, and vice versa. This separation also promotes a cleaner code structure and enhances the overall development process. 

// Business logic (in a separate file, e.g. functions.php)
function calculateTotal($price, $quantity) {
    return $price * $quantity;
}

// Presentation layer (in the main PHP file)
$price = 10;
$quantity = 5;
$total = calculateTotal($price, $quantity);

echo "Total: $" . $total;

Keywords

business logic presentation Intranet PHP separation

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