framework/captcha/CaptchaAction.php
public function run()
    {
        if (Yii::$app->request->getQueryParam(self::REFRESH_GET_VAR) !== null) {
            // AJAX request for regenerating code
            $code = $this->getVerifyCode(true);
            Yii::$app->response->format = Response::FORMAT_JSON;
            return [
                'hash1' => $this->generateValidationHash($code),
                'hash2' => $this->generateValidationHash(strtolower($code)),
                // we add a random 'v' parameter so that FireFox can refresh the image
                // when src attribute of image tag is changed
                'url' => Url::to([$this->id, 'v' => uniqid('', true)]),
            ];
        }

        $this->setHttpHeaders();
        Yii::$app->response->format = Response::FORMAT_RAW;

        return $this->renderImage($this->getVerifyCode());
    }
public function run()
    {
        if (Yii::$app->request->getQueryParam(self::REFRESH_GET_VAR) !== null) {
            // AJAX request for regenerating code
            $code = $this->getVerifyCode(true);
            Yii::$app->response->format = Response::FORMAT_JSON;
            return [
                'hash1' => $this->generateValidationHash($code),
                'hash2' => $this->generateValidationHash(strtolower($code)),
                // we add a random 'v' parameter so that FireFox can refresh the image
                // when src attribute of image tag is changed
                'url' => Url::to([$this->id, 'v' => uniqid('', true)]),
            ];
        }

        $this->setHttpHeaders();
        Yii::$app->response->format = Response::FORMAT_RAW;

        return $this->renderImage($this->getVerifyCode());
    }
public function run ( ) { if ( Yii :: $ app -> request -> getQueryParam ( self :: REFRESH_GET_VAR ) !== null ) { // AJAX request for regenerating code $ code = $ this -> getVerifyCode ( true ) ; Yii :: $ app -> response -> format = Response :: FORMAT_JSON ; return [ 'hash1' => $ this -> generateValidationHash ( $ code ) , 'hash2' => $ this -> generateValidationHash ( strtolower ( $ code ) ) , // we add a random 'v' parameter so that FireFox can refresh the image // when src attribute of image tag is changed 'url' => Url :: to ( [ $ this -> id , 'v' => uniqid ( '' , true ) ] ) , ] ; } $ this -> setHttpHeaders ( ) ; Yii :: $ app -> response -> format = Response :: FORMAT_RAW ; return $ this -> renderImage ( $ this -> getVerifyCode ( ) ) ; }
Runs the action.
Runs the action .