Re: Trying to cut down on form spam

From: Date: Mon, 08 Dec 2014 22:35:48 +0000
Subject: Re: Trying to cut down on form spam
References: 1 2 3 4 5 6 7  Groups: php.general 
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Ken Kixmoeller: > Not for international use, but: I just downloaded a bunch of very > easily-identifiable similarly-formatted pictures. Made them the same size. > I created a simple table with the name of the picture file and the english > name of the object, both encrypted. Then a simple function created radio > buttons with 5 random object names and one of the 5 photos. Display a "The > best word to identify this:" > > Match 'em up & act accordingly. Such visual-only CAPTCHAs might be impossible to solve by visually impaired people. It's better to provide a fallback for them, what might be even required by law. -- Christoph M. Becker

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