Question

I’ve got to write a loop that should start and end between two times. I know there are many ways to skin this cat, but I’d like to see a real programmers approach to this function.

Essentially I have Wednesday, for instance, that opens at 6:00pm and closes at 10:30pm.

I’m looking to write a loop that will give me a table with all of the times in between those two in 15 minute intervals.

So, I basically want to build a one column table where each row is

6:00pm
6:15pm
7:15pm

etc…

My two variables to feed this function will be the open time and the close time.
Now don’t accuse me of “write my code for me” posting. I’ll happily give you my hacked solution on request, I’d just like to see how someone with real experience would create this function.

Thanks 🙂

Answer 1

$start = new DateTime("2011-08-18 18:00:00");
$end = new DateTime("2011-08-18 22:30:00");
$current = clone $start;
while ($current <= $end) {
    echo $current->format("g:ia"), "\n";
    $current->modify("+15 minutes");
}

Try it on Codepad: http://codepad.org/JwBDOQQE