example loop

gistfile1.txt

	public function form( $instance ) {

		$values = array(
			'name' => array( 
				'gaiyou'		 => $instance[ 'gaiyou1' ],
				'gaiyou_name'	 	 => $this->get_field_name( 'gaiyou1' ),
				'gaiyou_id'		 => $this->get_field_id( 'gaiyou1' ),
			),
			'url' => array( 
				'gaiyou'		 => $instance[ 'gaiyou2' ],
				'gaiyou_name'	  	 => $this->get_field_name( 'gaiyou2' ),
				'gaiyou_id'		 => $this->get_field_id( 'gaiyou2' ),
			),
			'address' => array(
				'gaiyou'		 => $instance[ 'gaiyou3' ],
				'gaiyou_name'	 	 => $this->get_field_name( 'gaiyou3' ),
				'gaiyou_id'		 => $this->get_field_id( 'gaiyou3' ),
			),
			'tel' => array(
				'gaiyou'		 => $instance[ 'gaiyou4' ],
				'gaiyou_name'	 	 => $this->get_field_name( 'gaiyou4' ),
				'gaiyou_id'		 => $this->get_field_id( 'gaiyou4' ),
			),
		);

		$html = '<p><label for="%2$s">商号:</label><input class="widefat" id="%2$s" name="%3$s" type="text" value="%1$s"></p>';

		foreach ( $values as $key => $val ) {

			printf( $html, esc_attr( $val['gaiyou'] ), esc_attr( $val['gaiyou_id'] ), esc_attr( $val['gaiyou_name'] ) );
		}
	}