Task 1 - Custom calendar function

Write PHP function, which returns day of standard seven days week of imaginary calendar, assuming we know how often a leap year occurs, how many months it has and how many days it has in each month. Use function to find the day of date 17.11.2013.

Definition of calendar:

• each year has 13 months
• each even month has 21 days, each odd month has 22 days
• in leap year last month has less one day
• leap year is each year dividable by five without rest
• every week has 7 days: Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, Saturday
• first day of year 1990 was Monday

Use git and push code to github or bitbucket.

How to run tests:

• Install phpunit using command: composer require --dev phpunit/phpunit
• Run tests using command: ./vendor/bin/phpunit