Exo3

[LeoGrouet]

Here my solution to the exercice 3.

At first, i looked at the terminal error to resolve the issues.
Then i had to create a function to determined the balance between the users.

To find the solution, i copied the index as test.php and add small unit tests (like echo) in it to let me know what kind of data was used to add and or subtract amount in the balance, and when they was called.

I removed this "test.php" to get a cleaner code.

Then i unify the classes by writing down the exact same things in one and in the other, except for the getType().

The output doesn't leave much room to add or delete file so i did it this way.

Hope it's ok :)