validations

if (empty($_FILES['foto']['name']))
	{
		//eksekusi

	}
else
{
		$image_info = getimagesize($_FILES["foto"]["tmp_name"]);
		$image_width = $image_info[0];
		$image_height = $image_info[1];
	if (($image_height=='600') and ($image_width=='600'))
	{
		//echo "eksekusi";

	}
	else
	{
			//echo "please check image width and height";
	}
}

}