Re: Re: Sorting times

The easiest would probably to use http://nz.php.net/manual/en/function.strnatcmp.php . It would happen to sort it the right way because am is before pm ;-). You can of course make it more challenging by converting it into a timestamp etc. That would be better if you want to sort by date as well etc. If you go that way you should look at http://nz.php.net/manual/en/function.usort.php . Regards, Tim Tim-Hinnerk Heuer http://www.ihostnz.com Alanis Morissette - "We'll love you just the way you are if you're perfect." 2009/2/15 Shawn McKenzie <nospam@mckenzies.net> > Shawn McKenzie wrote: > > tedd wrote: > >> Hi gang: > >> > >> Anyone have/know a routine that will sort an array of times? > >> > >> For example, a function that would take an array like this: > >> > >> time[0] ~ '1:30pm' > >> time[1] ~ '7:30am' > >> time[2] ~ '12:30pm' > >> > >> and order it to: > >> > >> time[0] ~ '7:30am' > >> time[1] ~ '12:30pm' > >> time[2] ~ '1:30pm' > >> > >> > >> Cheers, > >> > >> tedd > >> > >> > > > > Not tested: > > > > function time_sort($a, $b) > > { > > if (strtotime($a) == strtotime($b)) { > > return 0; > > } > > return (strtotime($a) < strtotime($b) ? -1 : 1; > > } > > > > usort($time, "time_sort"); > > > Well, I just thought, since the strtotime() uses the current timestamp > to calculate the new timestamp, if you only give it a time then the > returned timestamp is today's date with the new time you passed. If you > had a large array and the callback started at 23:59:59 then you could > end up with some times from the date it started and some from the next > day, which of course would not be sorted correctly with respect to times > only. So, this might be better (not tested): > > > function time_sort($a, $b) > { > static $now = time(); > > if (strtotime($a, $now) == strtotime($b, $now)) { > return 0; > } > return (strtotime($a, $now) < strtotime($b, $now) ? -1 : 1; > } > > > -- > Thanks! > -Shawn > http://www.spidean.com > > -- > PHP General Mailing List (http://www.php.net/) > To unsubscribe, visit: http://www.php.net/unsub.php > >