init() public method Initializes the widget.

$sourcePath public property public

$options public property The HTML attributes for the input tag

$template public property The template for arranging the CAPTCHA

registerClientScript() public method Registers the needed

$captchaAction public property The route of the controller action

$caseSensitive public property Whether the comparison is case

$maxLength public property The maximum length for randomly generated

$minLength public property The minimum length for randomly generated

run() public method Renders the widget.