[matthew tucker]

imagecreatefromstring() does it!

thanks for that pointer.

but it seems REALLY slow ... is this normal? I mean, it seems slower than just loading the whole image!

using basic code from PHP.net ...

PHP Code:

 header('Content-type: image/jpeg');
$data = $attachmentinfo[filedata];
$size = 150; 
$src = imagecreatefromstring ($data);
$width = imagesx($src);
$height = imagesy($src);
$aspect_ratio = $height/$width; 
 
if ($height <= $size) {
$new_w = $width;
$new_h = $height;
} else {
$new_h = $size;
$new_w = abs($new_h / $aspect_ratio);
}
 
$img = imagecreatetruecolor ($new_w,$new_h); 
 
imagecopyresampled ($img,$src,0,0,0,0,$new_w,$new_h,$width,$height); 
 
// or imagecopyresized()
 
imagejpeg($img ); //,'', 90