How(s) pattern(s) to choose?

Question

PHP

Hello!
For the sake of self-development, I decided to write a simple card game. The server part is written in php.
In one class, I wrote all the logic, in another, work with this logic (deck initialization, etc.).
Now I would like to connect such things as playing for chips, checking the bet for validity, and so on.

Answer 1

and where are the patterns?