UNB Components Code Reference

UnbCaptcha class

Completely Automated Public Turing test to tell Computers and Humans Apart, using text in an image.

Public methods

S CheckWord

Checks the specified user input to determine whether it is correct or not.

S ClearWord

Clears the last word.

S GenerateImage

Generates the CAPTCHA image, sends it to the browser and terminates the script execution.

S GetConfiguration

Gets the CAPTCHA configuration array.

S GetWord

Gets the word used in the last displayed image in this session.

S SetConfiguration

Sets a new CAPTCHA configuration array.

Private methods

   Class constructor

Private constructor, does nothing but preventing an unwanted instantiation of this class.

S NormaliseWord

Normalises a word, removes non-letters, converts to upper case.

S php_imageconvolution

Compatibility function for GD libraries not bundled with PHP.

Private fields

config  –  default: null

Configuration array. Should always be retrieved through the GetConfiguration method.

Implementation file: captcha.class.php, line 12

© 2011 Yves Goergen. UNB Components Homepage. Reference generated on 2011-02-22.