You have:
$image_info = getimagesize($_FILES["news_image_small"]["tmp_name"]);
$_FILES["news_image_small"]["height"] = $image_info3[0];
it should be:
$image_info3 = getimagesize($_FILES["news_image_small"]["tmp_name"]);
$_FILES["news_image_small"]["height"] = $image_info3[0];