Block output depending on date?

Question

PHP

There are several blocks of code.
Who knows how to display them depending on the days of the month? For example, if the days of the month are from 1 to 10, then we output block 1, if from 11 to 20, then block 2, and so on.
For every day, it is hemorrhagic to prescribe, I'm sure there is a solution unfamiliar to me.
Thanks in advance for the tip.

Answer 1

date and switch , then handles and head.
UPD: it 's simple and beautiful about the days, the truth about the days of the week, but I think you'll figure it out)