TypePR | A web-based customizable typing test | Frontend Framework library

I very recently (as in, this week) started learning PHP and am doing a practice task.

(Therefore, apologies in advance, if I sound like I don't know what I'm talking about, that is true)

Here is a crude schematic of my tables: I have a main table products, and there are 3 planned product types (book, disc, furniture), and each type has a special attribute, with their own tables. (size for discs, weight for books etc.)

So far through testing, I've managed to query out the object from my products table each into their separate bootstrap card components. What I am trying to accomplish now is to add the special attributes to their respective object cards.

This is where i've reached a dead end. The idea I have is to first create a seperate array $printtocard, then call all the products table records by type, then run a foreach through all the found records, and then run a switch inside the foreach where i check the product types and run cases based on type, which create new objects based on the linked table data, and add each of them to the $printtocard array.

Afterwards the plan is to call the array in the code that later outputs the objects.

Here is my code so far:

Main php code