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if($file->size>1024 && $file->size< 1024*1000){   $file->size /= 1024;   $file->size =round($file->size)." ko"; }elseif($file->size>=1024*1000 && $file->size< 1024*10000){   $file->size /= 1024 * 1000;   $file->size =round($file->size)." Mo";}else{   $file->size /= 1024 * 10000;   $file->size =round($file->size)." Go";}