PHP list,
I've looked at the manual entries for imagepng() and
imagecreatetruecolor() functions for helping me to create a temporary
image for a CAPTCHA system.
However, I'm clearly messing up, as what I'm outputting is a bunch of
ASCII gibberish to the screen.
What I think I need to do in principle is first create the image with
imagecreatetruecolor(), then define it as a PNG (?), then display it.
So I've got something like this:
$image = ImageCreate($width, $height);
ImageFill($image, 0, 0, $black);
echo '<img " src="' . Imagepng($image) . '" height="' . $height . '"
width="' . $width .'" alt="captcha" />' . "\n";
ImageDestroy($image);
As mentioned, this isn't working, so there's a fundamental concept about
how PHP creates and displays images that I'm not getting.
I'm trying to output an image that, ideally, won't be stored as a file.
Or, if it has to be a temporary file, to delete it immediately after
displaying it.
What part am I not understanding?
Thank you for any advice or information.
--
Dave M G
Ubuntu Feisty 7.04
Kernel 2.6.20-15-386
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