ช่วยดูโค้ดการแทรกรูปภาพเป็น resize และกำหนดขนาดไม่เกิน 500 kb

<?
$date = date('YmdHis');
	for($i=0;$i<count($_FILES["fileUpload"]["name"]);$i++)
	{
		if(trim($_FILES["fileUpload"]["tmp_name"][$i]) != "")
		{
			$images = $_FILES["fileUpload"]["tmp_name"][$i];
			$new_images = "Thumbnails_".$date.$_FILES["fileUpload"]["name"][$i];
			copy($_FILES["fileUpload"]["tmp_name"][$i],"MyResize/".$date.$_FILES["fileUpload"]["name"][$i]);
			$width=100; //*** 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,"MyResize/".$new_images);
			ImageDestroy($images_orig);
			ImageDestroy($images_fin);

			echo "Resize Successful.<br>";

			//*** Insert Record ***//
			$objConnect = mysql_connect("localhost","root","@9174") or die("Error Connect to Database");
			$objDB = mysql_select_db("networkpic");
			$strSQL = "INSERT INTO files_all";
			//$strSQL .="(Thumbnails,FilesName) VALUES ('".$_POST["Fil'".$new_images."','".$date.$_FILES["fileUpload"]["name"][$i]."')";
$strSQL .="(FilesID,Thumbnails,FilesName_all) VALUES ('".$_POST["FilesID"]."','".$new_images."','".$date.$_FILES["fileUpload"]["name"][$i]."')";
		$objQuery = mysql_query($strSQL);
		}
	}