Is it recommended to include an entire application using PHP include?

Including an entire application using PHP include is not recommended as it can lead to potential security risks and performance issues. It is better to include specific files or components that are needed for a particular page or functionality. This helps in keeping the code modular, organized, and easier to maintain.

// Instead of including an entire application, include specific files or components
include 'header.php';
include 'content.php';
include 'footer.php';