PHP Image Watermark

[damo]

Hi

 

We are retrieving an image from the database and displaying it to the user.

We would like to be able to watermark this image from the database before it is displayed to the user.

We don't want to watermark it when the user adds it to the database , just when they view the images

 

Any idea if this can be done?

And if s, does anyone have sample code?

 

Here is the code we use to retrieve and display the image

 

include('includes/database.php');

$car_name = $_GET['car_name'];

$size =  $_GET['size'];

$query = "select content, type from upload where car_name = '". $car_name ."' and name LIKE '%image1%'";

$result = @MYSQL_QUERY($query);

$data = @MYSQL_RESULT($result,0,"content");

$type = @MYSQL_RESULT($result,0,"type");

header('Content-type: ' . $type);

$im = imagecreatefromstring($data);

$width  = imagesx($im);

$height = imagesy($im);

$imgw = $size;

$imgh = $height / $width * $imgw;

$thumb=imagecreatetruecolor($imgw,$imgh);

ImageCopyResized($thumb,$im,0,0,0,0,$imgw,$imgh,ImageSX($im),ImageSY($im));

$out = ImagejpeG($thumb, "", 80);

echo $out;

imagedestroy ($im);

imagedestroy ($thumb);

 

Any help would be greatly appreciated

Thanks

Damien

[samshel]

Check this out..

 

http://in2.php.net/manual/en/function.imagecopy.php

 

[damo]

Hi Samshel

 

Thanks for that link it was very useful.

 

i ran into another problem though.

When i display an image it displays ok but when i tried to add a watermark to the image i get this error sometimes

Fatal error: Allowed memory size of 12582912 bytes exhausted (tried to allocate 2048 bytes) in /home/...

 

This error only seems to occur for images over half a meg in size.

Any thoughts on what i could do to fix this issue?

 

Thanks

Damien

[monkeytooth]

could be your php.ini files size limits..