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Is captcha easy to implement with codeigniter?

I am using CodeIgniter and need easy to use. Something simple, nothing complicated. Any ideas?

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php codeigniter captcha
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https://github.com/EllisLab/CodeIgniter/wiki/ReCAPTCHA <- will recaptcha work for you?

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Try using ReCaptcha - http://recaptcha.net/ - it is easy and has a PHP API too.

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List of 12 major captchas . For example, Captchator looks simple.

If you want to use captcha because of spam messages, I would advise you to also look at akismet or type anti-spam

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Creating your own captcha script can also be fun. With php gd library this is not so difficult to accomplish. Of course, it makes no sense to reinvent the wheel, and using scripts such as recaptcha is much safer, but, as I said, it can be interesting.

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The best solution was provided by nettuts.com, but for codeigniter the best solution is here. http://codeigniter.com/wiki/captcha/

To integrate into your script, you need to parse the API.

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