task by b2broker

 Test task: Financial transactions system

We expect you to use SOLID, GRASP principles, design

patterns. Code check must be passed by phpstan, phpcs

analyzers. In README file in the test task you should

describe which patterns did you use and why.

Only business logic code required. MVC pattern is

forbidden, UI Interface is not required because there

is no reason for start application. That means you

should not write controllers and views.

Task Question:

Implement a set of classes for managing the financial

operations of an account.

There are three types of transactions: deposits, withdrawals

and transfer from account to account.

The transaction contains a comment, an amount, and a due

date.

Required methods:

 get all accounts in the system.

 get the balance of a specific account

 perform an operation

 get all account transactions sorted by comment in

alphabetical order.

 get all account transactions sorted by date.

The test task must be implemented without the use of

frameworks and databases. This is necessary in order to see

your coding style, ability to understand and implement the

task and demonstrate your skills.