Graphics: Hippo Chinese Cert Code
DavidLanz (contact me)
This class can be used to generate CAPTCHA validation images using Chinese words.
The class picks random words from a file with a list of Chinese words represented in the big5 encoding.
The picked word is stored in a session variable so it can be compared with what the user entered in a form later.
The words are rendered in an image using an appropriate True-Type font. The words may be rendered over a given background image.
The generated image is served in the PNG format as part of the current script output.
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