How to show/select Quote Of The Day

I have a database with lots of quote's and I want to create a "Quote of the Day" page. The basic idea is to fetch all the quotes from the database, place this in an array and echo the quote at a random index number in the array.

That is the basic idea which is very to implement and which I have of course covered so far. The problem is, every time the page is refreshed, a new quote will pop up. This is not what I want.

I want the page to refresh the quote ONLY at 0:00 (or another time, but that is not the point).

Can anybody please point me in the right direction?

Solution

This sounds overly complex. The normal way to do something like this would be

Store the quotes in the database; give each row a date
On every request, fetch the quote of the current day from the database and display it.

If you don't want to specify a date in the database, you could also hard-code a start date in your script (like, say, today's date) and then fetch the quote accordingly - so today, you'd fetch the first row in your database; tomorrow, the second, and so on.