Posts Tagged spam
Anti-Spam Email PNG
Posted by Howard Yeend in PHP on March 13, 2009
This is a simple way to display your email without fear of it getting picked up by spammers; it creates an image of the email address you send it. To be honest, I don’t think in this day and age spammers spend huge amounts of time trawling through gigs of websites looking for email addresses so all this “howard DOT yeend AT gmail DOT com” stuff I think is largely futile – have you experienced a drop in spam since obfuscating your address like that? Thought not. But hey, if you want to see how to write strings in PHP, check out the code :) Read the rest of this entry »
Breaking CAPTCHA without OCR
Posted by Howard Yeend in CAPTCHA, hacking on November 30, 2005
Breaking CAPTCHAs Without Using OCR
For my own PHP CAPTCHA implementation, click here.
This article details a method I have discovered to bypass CAPTCHA security, without having to use Optical Character Recognition software. It depends on an implementation problem that was quite common among CAPTCHA scripts when I originally published this in May 2005.
Read the rest of this entry »
free PHP CAPTCHA v1.4.1
Posted by Howard Yeend in CAPTCHA on April 6, 2005
freeCap is a GPL CAPTCHA script to stop spam. It was written as a proof-of-concept at a time when there were really no other good PHP captcha scripts around (2005). For a long time I think it’s not untrue to say freeCap was the best PHP CAPTCHA there was.
To be perfectly honest, these days I would recommend you try reCAPTCHA first. freeCap does still do the job perfectly well, but the reCAPTCHA guys can provide better support than I.
Still, freeCap might be the solution for you if you want to be able to have more control over how the CAPTCHA works and is displayed. There are a whole load of tweakable options: multiple GD fonts, colours, backgrounds, obfuscation options etc. And the code is pretty good too if you’re just interested in PHP image processing. Still interested? Read on!
Free PHP Scripts / Web Projects
Posted by Howard Yeend in CAPTCHA, Firefox, Other Code, PHP, Programs on January 13, 2005
Various PHP projects of mine, with free GPL source code.
Mostly, these are small PHP/mySQL applications that provide an equally small piece of functionality. Source code is available under the GPL in most cases. Read the rest of this entry »
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