How to use MySQL Found_Rows() in PHP?

Question

I try to avoid doing Count() because of performance issue. (i.e. SELECT COUNT() FROM Users)

If I run the followings in phpMyAdmin, it is ok:

Answer 1

Do you really think that selecting ALL rows from tables is faster than counting them?
Myisam stores a number of records in table's metadata, so SELECT COUNT(*) FROM table don't have to access data.