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|Graphics||Colors, images, charts and picture formats||View top rated classes|
|Validation||Validation algorithms||View top rated classes|
Prize: One book of choice by Packt
|CAPTCHA is an acronym for a group of techniques that are used for preventing the access of automated programs to protected Web site pages that are meant only for real human users.
The most common form of CAPTCHA validation employs the use of fuzzy images with a few text characters that the user must enter correctly to have access to the protected pages.
This class implements a variant of the image based CAPTCHA validation solutions. It renders Chinese characters instead of the usual ASCII characters.
This is a better solution to protect the access to pages that are meant only for human users that can read Chinese text.
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|Applications that use this class|
|background.gif||Photo||simple background picture|
|check.php||Example||Demo: compare input string and the correct one|
|cht_str.php||Data||some Chinese words|
|hippo_chinese_cert_code.php||Class||main Hippo_Chinese_Cert_Code class|
|hippo_sample_image.php||Aux.||this is where we generate pictures|
|index.php||Aux.||run demo from here!!!|
|INSTALL||Doc.||the file u're reading|
|README||Lic.||summary of this class|