I think you're on a track that will work. There are a lot of approaches.

I'd probably not load up all the files into an array - there might be a lot of them someday, and it's easy to check if a file exists.

So, in pseudocode (since you're asking for approach), something like: 

use Date::Calc; # For date math

my $day = some formatting to localtime...
return if $day > $end_date;

while ( $day > $start_date ) { # you'll have to either keep these in Y
+YYYMMDD format, or do some more complicated comparison logic
   my $hopeful_filename = "images/$today";
   if (-e $hopeful_filename) {
       return $hopeful_filename;
   }
   $day = Add_Delta_Days(...); # Subtract one from the day
}

[download]
That should get you on the write path. perldoc Date::Calc for the exact syntact for Add_Delta_Days.

-- Kirby, WhitePages.com

In reply to Re: Displaying a Image based on date range by kirbyk
in thread Displaying a Image based on date range by Anonymous Monk

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