Securimage PHP CAPTCHA
A highly customizable PHP CAPTCHA class for generating CAPTCHA images to prevent programs from filling out your forms. Securimage does everything from generating images to validating codes. It has support for streaming MP3 audio of the code to the user's browser with Flash. TTF font support, character distortion, custom colors and backgrounds, use wordlists or custom character sets, distortion lines and many more features. Several examples included and free or paid support is available.
Visit publisher site: Securimage PHP CAPTCHAListing Details
- Version:
- 2.0
- Filed in:
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Scripts / PHP / Scripts & Programs / Security Systems / Captcha Scripts
- Submitted on:
- Last Updated:
- Dec 6, 2009
- Publisher:
- Drew Phillips Other listings by this publisher
License & Pricing Information
- License Type:
- GPL
- Price:
- $0.00 USD
- Additional Info:
User Reviews
Add/Edit Your ReviewDisplaying 1-3 out of 3 reviews
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The visual aspect of the CAPTCHA is really top class. However, the Audio has not been correctly implemented and has suffered for some time from a known Authentication Bypass: http://www.idontplaydarts.com/2011/05/exploit-phpcaptcha-securimage/ The bottom line is that if you want to be secure you need to disable the audio component of the CAPTCHA.
Bottom Line: No, I would not recommend this to a friend
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Fairly easy to set up and very effective so far - it has completely stopped spam from my web forms (unlike other captchas I've tried) and legitimate traffic is still coming through. A person with very poor eyesight in our office was quite happy with it as well. Cached pages can cause problems - I put a reminder about using Ctrl+F5 on the failure page - there's no truly effective solution to this.
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It took me about 20 minutes to figure out how to get all of the appropriate libraries installed for PHP to recognize this little jewel-- but that was because of my lack of PHP-oriented knowledge. You just have to recompile PHP with GD and FreeType support and this script comes rocking out of the box! I am happy that the developer allows so much customization in the way that your 'Security Code' looks ... and the code is easy to understand. So, if you are not happy with it as it comes, it's really easy to mold it into what you need. Supports most colors and even supports image backgrounds. That's one of the coolest features (I am currently on the hunt for a fairly busy background)! Excellent, A++, not much more to say. Thanks for keeping this 'Diamond in the Rough' FREE!