Robert Cummings wrote: > On Thu, 2006-10-26 at 22:44 +0200, Jochem Maas wrote: >> Robert Cummings wrote: >>> On Thu, 2006-10-26 at 15:31 +0200, Jochem Maas wrote: >>>> bunch of space wasters ;-) >>>> >>>> <?php foreach (range(1, 31) as $d) echo '<option value="',$d,'"',($d = $selDay?' >>>> selected="selected"':''),'>',$d,'</option>'; ?> >>> Specifically: >>> >>>> range(1, 31) >>> Memory waster ;) >> any idea as to what the damage is as compared to the classic for loop? > > Given that a variable probably costs X and that any variable cane be > stored as Y in an array, and an array would cost Z where the Z = X * Y _ > 1 (Y element + 1 for the array container itself). > > Then the range format would cost 31 + 1 (the array itself + 31 entries) > whereas the for loop would cost 1 + 1 (cost to store i + cost to store > endpoint comparison. Thus the damage is about 15*. Given general > computer science consideration, this is a constant and thus practically > neglible. > > Cheers > Rob (ps. the above may be completely incoherent since I'm completely > drunk atm after celebrating two friends birthdays tonight). not a bad explainantion then ;-) it's only the last bit I didn't quite follow :-) -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
