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$size = getimagesize("myphoto/".$rowpic['name_photo']);
if($size[0] > $size[1]){ //กว้าง > สูง
  $images = 'myphoto/'.$rowpic['name_photo'];
  $new_images = "img-th/".$images;
  $width=650; //*** Fix Width & Heigh (Autu caculate) ***//
  $size=GetimageSize($images);
  $height=round($width*$size[1]/$size[0]);
  $images_orig = ImageCreateFromJPEG($images);
  $photoX = ImagesX($images_orig);
  $photoY = ImagesY($images_orig);
  $images_fin = ImageCreateTrueColor($width, $height);
  ImageCopyResampled($images_fin, $images_orig, 0, 0, 0, 0, $width+1, $height+1, $photoX, $photoY);
  ImageJPEG($images_fin,$new_images);
  ImageDestroy($images_orig);
  ImageDestroy($images_fin);
}