simple php watermark script

[daveh33]

Hi - I am trying to get a script to work which can watermark my images - I am working of this tutorial: -

 

http://www.trap17.com/index.php/watermark-image-simple-php-script_t36015.html

 

I have a file called watermark.php with the below code: -

<?php
    // this script creates a watermarked image from an image file - can be a .jpg .gif or .png file
    // where watermark.gif is a mostly transparent gif image with the watermark - goes in the same directory as this script
    // where this script is named watermark.php
    // call this script with an image tag
    // <img src="watermark.php?path=imagepath"> where path is a relative path such as subdirectory/image.jpg
    $imagesource =  $_GET['path'];
    $watermarkPath = $_GET['watermark'];
    $filetype = substr($imagesource,strlen($imagesource)-4,4);
    $filetype = strtolower($filetype);
    $watermarkType = substr($watermarkPath,strlen($watermarkPath)-4,4);
    $watermarkType = strtolower($watermarkType);

    if($filetype == ".gif")  
        $image = @imagecreatefromgif($imagesource);
    else  
        if($filetype == ".jpg" || $filetype == "jpeg")  
            $image = @imagecreatefromjpeg($imagesource);
        else
            if($filetype == ".png")  
                $image = @imagecreatefrompng($imagesource);
            else
                die();  
    
    if(!$image)
        die();
    
    if($watermarkType == ".gif")
        $watermark = @imagecreatefromgif($watermarkPath);
    else
        if($watermarkType == ".png")
            $watermark = @imagecreatefrompng($watermarkPath);
        else
            die();
        
    if(!$watermark)
        die();
        
    $imagewidth = imagesx($image);
    $imageheight = imagesy($image);  
    $watermarkwidth =  imagesx($watermark);
    $watermarkheight =  imagesy($watermark);
    $startwidth = (($imagewidth - $watermarkwidth)/2);
    $startheight = (($imageheight - $watermarkheight)/2);
    imagecopy($image, $watermark,  $startwidth, $startheight, 0, 0, $watermarkwidth, $watermarkheight);
    imagejpeg($image);
    imagedestroy($image);
    imagedestroy($watermark);
?>

 

Within the directory I have - watermark.php, index.php, watermark.gif & test.jpg

 

index.php simply contains: -

 

<?
header("Content-type: image/jpeg");
?>
<img src="watermark.php?path=test.jpg&watermark=watermark.gif" />

 

All it seems to display is the page url ... no image - any ideas why??