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I Need Captcha Like Easyhits4u ?


papa_php
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I once wrote an article about creating a simple CAPTCHA in PHP: http://www.aspektas.com/blog/a-basic-php-captcha/You can add the other features present in easyhits4u's CAPTCHA with more GD functions, such as http://www.php.net/manual/en/function.imageline.php.

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There are some very nice captcha services you can use to protect your site, one of which is reCAPTCHA, it's a well implemented (strong) captcha, includes audio for the sight impaired, difficult for machines to read because of the warped/distorted characters, plus the extra word is part of a large distributed system aimed at translating books that OCR can't read.I'd probably recommend this over writing your own, because it's not trivial to make a captcha of equivalent strength.

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Then design it, and build it. What do you want from us, you think we can post the exact code that does exactly what you want? The only captcha I see on easyhits4u.com is pretty basic, it just uses text rotation, some minor text deformation, randomizing the Y-position of the characters, and adding lines. You can do all of those with a little PHP and the GD library like Synook pointed out, or you can use one of the tons of premade captchas, like AElliott pointed out.Or, you can also just view the source of the easyhits4u.com registration form and figure out that their captcha is coming from a third-party service, and you can use that same service on your site. All you need to do is look at their code and see what they're doing, they have the URL that they're using for captchas right in their form code.

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