How to make 5 out of 56, how to make 7 out of 78, etc.?

Question

PHP

rOund and ceil and other fractions round off. And I need to bring the number to a round ten and make a single digit out of it.

That is, as I understand it, it is necessary to somehow bring the number to an even tenfold. And then divide by 10.

Answer 1

Divide by 10 and round down
floor(56 / 10); // 5