text overlay with gdlib

[sotonin]

I have this code that loads a png file. and inserts text using a specified font.

My only problem is that the text is always yellow, regardless of how i try to set it.

Anybody have any ideas?

$im_size = getimagesize($img); 
$image_width = $im_size[0]; 
$image_height = $im_size[1]; 

$im = imagecreatetruecolor($image_width, $image_height); 

$im2 = imagecreatefromPNG($img); 

imagecopy($im, $im2, 0, 0, 0, 0, $image_width, $image_height); 
imagedestroy($im2); 

$white = imagecolorallocate($im, 0, 0, 0); 
$black = Imagecolorallocate($im, 255, 255, 255); 

// Calculate text position 
$bounding_box = imagettfbbox($font_size, 0, $font_file, $text); 
$horz_pos = $image_width - $bounding_box[2] - $bounding_box[0] - 25; 
$vert_pos = $image_height - 25; 

// Write the text to the image, using the drop shadow effect 
imagettftext($im, $font_size, $angle, $horz_pos, $vert_pos, $black, $font_file, $text); 
$horz_pos -= 1; 
$vert_pos -= 1; 
imagettftext($im, $font_size, $angle, $horz_pos, $vert_pos, $black, $font_file, $text); 
$horz_pos -= 1; 
$vert_pos -= 1; 
imagettftext($im, $font_size, $angle, $horz_pos, $vert_pos, $white, $font_file, $text); 
ImageInterlace($im, true); 

// Create and then destroy the image (discussed in steps 5 and 6) 
header("Content-type: image/png"); 
imagePNG($im); 
imagedestroy($im); 
?> 

thanks!