On Tue, May 08, 2007 at 11:30:43AM -0400, Sandy wrote:
> Patrick R. Michaud wrote:
>
> > The captcha code allows captchas to be simply displayed as text,
> > instead of as a graphic. In fact, this is the default, unless
> > $EnableCaptchaImage is set. One can also use {$CaptchaValue}
> > in the markup.
> >
> > It's also possible to configure the image's alt= tag to contain
> > the captcha value.... but this somewhat defeats the purpose of
> > having a captcha. :-)
> >
>
> What about "type the string in backwards" or "type only the letters"?
"Type the string in backwards":
$FmtPV['$CaptchaReverse'] = "strrev(\$GLOBALS['CaptchaValue'])";
Similarly, one could create a $CaptchaAddLetters to obscure by
adding random letters to the phrase.
> Next layer, randomly select which method to use.
This can be done in wiki markup. :-)
Pm
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