Image thumbnail not generating properly using PHP - php

Question

I have writen a script in PHP to upload an image.
To the point, my goal is to upload and to send 2 images to the server, 1 the original and 1 is the thumbnail. My script works, but is not perfect.
This is my script
<?php
//this is script for get data type file
$acak = rand(000000,999999);// for random
$lokasi_file = $_FILES['fupload']['tmp_name'];
$nama_file = $_FILES['fupload']['name'];
$nama_file_acak = $acak.$nama_file;
$ukuran_file = $_FILES['fupload']['size'];
$tipe_file = $_FILES['fupload']['type'];
$direktori = "fkendaraan/$nama_file_acak";
$uplod = move_uploaded_file($lokasi_file,"$direktori"); //to move image from local to the server folder
//to handle uplod thumbnail image
$img = imagecreatefromjpeg($direktori);
$width = imagesx($img);
$height = imagesy($img);
$new_width = 200;
$new_height = ($new_width/$width) * $height;
$tmp_img = imagecreatetruecolor( $width, $height );
imagecopyresampled( $tmp_img, $img, 0, 0, 0, 0, $new_width, $new_height, $width, $height );
//imagecopyresized( $tmp_img, $img, 200, 200, 0, 0, $new_width, $new_height, $width, $height );
imagejpeg( $tmp_img, $direktori."thumb-".$nama_file_acak );
imagedestroy($tmp_img);
imagedestroy($direktori);
//---------------------------------------------------------------
//I have no Problem with query and database, it works fine
$sql = "";
$query = mysql_query($sql);
?>
This can run but not perfect because the result like this
Any one can help me to fix this? Im very nubie in php

Answer 1

Try changing this:
$tmp_img = imagecreatetruecolor( $width, $height );
To this:
$tmp_img = imagecreatetruecolor( $new_width, $new_height );
Anyway I would recommend you to make use of some classes for these tasks such as:
Shiege Iseng Resize Class.
But of course, if you are trying to learn with this, that's ok :)