i have the following working code 
my %ext = ('jpg' => 'jpeg', 'jpeg' => 'jpeg', 'png' => png', 
    'JPEG' => 'jpeg', ,'JPG' => 'jpeg', 'PNG' => 'png');
....

my $aux = $ext{'JPEG'};
print  $image->$aux();
...

[download]
but there is something that i don't understand; why when i use $image->$ext{'JPEG'} does not work???
isn't $ext{'JPEG'} a scalar value and should work the same as $aux??

thanks for the comments.

ignorance, the plague is everywhere
--guttermouth

In reply to subroutine referencing by imcsk8

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