For install:

git clone https://github.com/bakl/exercise.git .
composer update

Exercise on PHP

php php_exercise.php -s 'Привет мир'

Exercise SQL

php sql_exercise.php

Result:

PHP:
Input string: Привет мир
Out string: рм тврП


SQL:
--------------------------------------------
| name       | distinations                |
============================================
| Vasya      | Cuba, Sochi                 |
--------------------------------------------
| Maria      | Aruba                       |
--------------------------------------------
| George     | Cuba, Sochi                 |
--------------------------------------------
| Clark Kent | Cuba, Krypton               |
--------------------------------------------
| Traveler   | Aruba, Krypton, Cuba, Sochi |
--------------------------------------------
------------
| name     |
============
| Vasya    |
------------
| George   |
------------
| Traveler |
------------
----------
| name   |
==========
| Vasya  |
----------
| George |
----------