dummy php to resize images with url

resize.php

<?php

$img = $_GET['img'];
$height = $_GET['height'];
$width = $_GET['width'];

$remote_file = $img;
$new_width = $width;
$new_height = $height;

list($width, $height) = getimagesize($remote_file);
$image_p = imagecreatetruecolor($new_width, $new_height);
$image = imagecreatefromjpeg($remote_file);
imagecopyresampled($image_p, $image, 0, 0, 0, 0, $new_width, $new_height, $width, $height);
header('Content-Type: image/jpeg'); 
imagejpeg($image_p, NULL, 100);
imagedestroy($image_p);

?>