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). -- .------------------------------------------------------------. | InterJinn Application Framework - http://www.interjinn.com | :------------------------------------------------------------: | An application and templating framework for PHP. Boasting | | a powerful, scalable system for accessing system services | | such as forms, properties, sessions, and caches. InterJinn | | also provides an extremely flexible architecture for | | creating re-usable components quickly and easily. | `------------------------------------------------------------' -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
