Problem with gd2.dll and xampp

[sunny5050]

Hi all,

im wondering if anyone can shed some ligt on this problem ...

im trying to create dynamic graphs in php. In the php.ini file "extension=php_gd2.dll" is already enabled and I am pointing to the correct directory.

With all this checked I have taken an example out of a book to see at least if an image can be drawn, however I keep getting this error:

Warning: Cannot modify header information - headers already sent by (output started at C:\Program Files\xampp\htdocs\dp\testgraph.php:1) in C:\Program Files\xampp\htdocs\dp\testgraph.php on line 15

‰PNG IHDRÈÈ—–<ÝPLTEÿÿÿUÂÓ~IDATxœíÁà ùS_áU|PÚ ùIEND®B`‚

This is the code:

<?

// set up image

$height = 200;

$width = 200;

$im = ImageCreate($width, $height);

$white = ImageColorAllocate($im,255,255,255);

$black = ImageColorAllocate ($im,0,0,0);

// draw on image

ImageFill($im, 0,0,black);

ImageLine($im, 0, 0, $width, $height, $white);

ImageString($im,4,50,150, 'Sales', $white);

// output image

Header ('Content-type: image/png');

ImagePng ($im);

// clean up

ImageDestroy($im);

?>

Please Please Please can somebody help. This is driving me crazy.

Thanks

Sunny