Echo sql total

ok so i want to echo how many user i have total in my admin_users table. But i don't know how to do that? Any ideas on how to do that. I already have the whole sql connection set up just need the script for the total users.

I suggest you just login to PHPMyAdmin and do a "browse" on that table.

na i want to post in a webpage so it look on a side bar
Total users: 999 whatever amount i have in my user table