function up_size($imageUrl,$ratio,$extension)
{
if ($extension == 'gif')
{
$src_img = imagecreatefromgif($imageUrl);
}
else
{
$src_img = @imagecreatefrompng($imageUrl);
}
$origw = imagesx($src_img);
$origh = imagesy($src_img);

$dst_img = imagecreatetruecolor($origw*$ratio,$origh*$ratio);
imagecopyresampled($dst_img,$src_img,0,0,0,0,$orig w*$ratio,$origh*$ratio,imagesx($src_img),imagesy($ src_img));

imagepng($dst_img, "$imageUrl");
//imagepng($dst_img);

return $dst_img;

}


resmi $ratio kat kadar büyütür