Posted by tim on 05/11/06 00:44

tim wrote:
> Barkster wrote:
> > I've done image verification using a predefined background image before
> > and never really liked it but I found one here that seems to
> > dynamically create the whole image instead of using a static background
> > image. Can anyone tell me how to do one like this? Thanks
> >
> > http://www.tradekey.com/functions/generateimage/generateimage.php
>
> Hi there
>
> There's a good choice of examples on wikipedia
>
> http://en.wikipedia.org/wiki/Captcha#PHP
>
> Tim

Sorry I misread your question... Yeah the background is different each
time and its always arcs of different size/colours + position, they
could be using imagearc with some randomised arguments + overlaying the
text on top.

http://uk2.php.net/manual/en/function.imagearc.php

Tim

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