How can using database IDs to retrieve content impact the organization and complexity of a PHP project?

Using database IDs to retrieve content can impact the organization and complexity of a PHP project by tightly coupling the database structure with the application logic. This can make it harder to refactor or change the database schema without affecting the PHP code. To mitigate this issue, it is recommended to abstract the database interactions into a separate layer, such as using an ORM (Object-Relational Mapping) library, to decouple the database from the application logic.

// Example of using an ORM library (such as Eloquent in Laravel) to retrieve content using database IDs
$post = Post::find($postId);
echo $post->title;