public function get($format = null)
    {
        if ( ! is_null($format) )
            $this->setFormat($format);

        ob_start();
        call_user_func($this->getFunctionName(), $this->getImage());

        return ob_get_clean();
    }
public function get($format = null)
    {
        if ( ! is_null($format) )
            $this->setFormat($format);

        ob_start();
        call_user_func($this->getFunctionName(), $this->getImage());

        return ob_get_clean();
    }
public function get ( $ format = null ) { if ( ! is_null ( $ format ) ) $ this -> setFormat ( $ format ) ; ob_start ( ) ; call_user_func ( $ this -> getFunctionName ( ) , $ this -> getImage ( ) ) ; return ob_get_clean ( ) ; }
Create QR Code and return its content

@param  string|null $format - Image type (gif, png, wbmp, jpeg)

@throws ImageFunctionUnknownException

@return string
Create QR Code and return its content