Implements interfaces:
[line 43]
[line 36]
[line 29]
boolean check( $keys, string $captchaCode)
string generate( $keys, [integer $width = null], [integer $height = null])
string getCode( )
void render( string $captchaCode, string $font, integer $size, [integer $width = null], [integer $height = null])
string _generateCaptcha( $keys)
void _setDimensions( [integer $width = null], [integer $height = null])
