protected function build_input($data, array $fields = []){
        $input = $this->get_open_tag($data, $fields);
        $counter = 1;
        foreach( $this->get_options() as $key => $label ){
            $input .= $this->get_option($key, $label, $counter, $data, $fields);
            $counter++;
        }
        $input .= $this->close_tag;
        return $input;
    }
protected function build_input($data, array $fields = []){
        $input = $this->get_open_tag($data, $fields);
        $counter = 1;
        foreach( $this->get_options() as $key => $label ){
            $input .= $this->get_option($key, $label, $counter, $data, $fields);
            $counter++;
        }
        $input .= $this->close_tag;
        return $input;
    }
protected function build_input ( $ data , array $ fields = [ ] ) { $ input = $ this -> get_open_tag ( $ data , $ fields ) ; $ counter = 1 ; foreach ( $ this -> get_options ( ) as $ key => $ label ) { $ input .= $ this -> get_option ( $ key , $ label , $ counter , $ data , $ fields ) ; $ counter ++ ; } $ input .= $ this -> close_tag ; return $ input ; }
Show input labels

@param mixed $data
@param array $fields
@return string
Show input labels