Not efficient, because the actual size on the disk depends on the filesystem. I don't think you can find out before writing it to the disk "Jochem Maas" <jochem@xxxxxxxxxxxxx> wrote in message news:438D70F4.3070400@xxxxxxxxxxxxxxxx > Karuna wrote: > > Hi. Is possible to calculate the filesize of image that will result from > > using imagejpeg without actually writing to disk? > > > > Thanks :) > > > > something like (although its not very efficient, I think): > > ob_start(); > image_jpeg($im); // $im is an GD resource > $data = ob_get_contents(); > ob_end_clean; > > $byteCount = strlen($data);
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