thumbnails tutorial

I have just started to look at trying to create a thumb nail image from the tutorial from the M. Bailey, but as I tried to run it I ahve recieved a parse error. As I have just pasted and copies from page I can;t understand .

here is code

php code-------
<?php
# Constants
define(IMAGE_BASE, '/main');
define(MAX_WIDTH, 150);
define(MAX_HEIGHT, 150);
# Get image location
$image_file = str_replace('..', '', $_SERVER['QUERY_STRING']); ----------line above is offending code -parse error---------------------
$image_path = IMAGE_BASE."/$image_file";
# Load image
$img = null;
$ext = strtolower(end(explode('.', $image_path)));
if ($ext == 'jpg' || $ext == 'jpeg') {
Â*Â*Â*Â*$img = @imagecreatefromjpeg($image_path);
} else if ($ext == 'png') {
Â*Â*Â*Â*$img = @imagecreatefrompng($image_path);
# Only if your version of GD includes GIF support
} else if ($ext == 'gif') {
Â*Â*Â*Â*$img = @imagecreatefrompng($image_path);
}
# If an image was successfully loaded, test the image for size
if ($img) {
Â*Â*Â*Â*# Get image size and scale ratio
Â*Â*Â*Â*$width = imagesx($img);
Â*Â*Â*Â*$height = imagesy($img);
Â*Â*Â*Â*$scale = min(MAX_WIDTH/$width, MAX_HEIGHT/$height);
Â*Â*Â*Â*# If the image is larger than the max shrink it
Â*Â*Â*Â*if ($scale < 1) {
Â*Â*Â*Â*Â*Â*Â*Â*$new_width = floor($scale*$width);
Â*Â*Â*Â*Â*Â*Â*Â*$new_height = floor($scale*$height);
Â*Â*Â*Â*Â*Â*Â*Â*# Create a new temporary image
Â*Â*Â*Â*Â*Â*Â*Â*$tmp_img = imagecreatetruecolor($new_width, $new_height);
Â*Â*Â*Â*Â*Â*Â*Â*# Copy and resize old image into new image
Â*Â*Â*Â*Â*Â*Â*Â*imagecopyresized($tmp_img, $img, 0, 0, 0, 0,
Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â*Â* $new_width, $new_height, $width, $height);
Â*Â*Â*Â*Â*Â*Â*Â*imagedestroy($img);
Â*Â*Â*Â*Â*Â*Â*Â*$img = $tmp_img;
Â*Â*Â*Â*}
}
# Create error image if necessary
if (!$img) {
Â*Â*Â*Â*$img = imagecreate(MAX_WIDTH, MAX_HEIGHT);
Â*Â*Â*Â*imagecolorallocate($img,0,0,0);
Â*Â*Â*Â*$c = imagecolorallocate($img,70,70,70);
Â*Â*Â*Â*imageline($img,0,0,MAX_WIDTH,MAX_HEIGHT,$c 2);
Â*Â*Â*Â*imageline($img,MAX_WIDTH,0,0,MAX_HEIGHT,$c 2);
}
# Display the image
header("Content-type: image/jpeg");
imagejpeg($img);
?>

php---------

can anyone hlep me to sought it out as `I cant find error