widget example

example widget with 2 parameters

class float_widget extends WP_Widget {

	public function __construct() {

		parent::__construct(
			'html_id',
			__( 'widget title', 'text_domain' ),
			array(
				'description' => __( 'demo widget', 'text_domain' ),
				'classname'   => 'widget classname',
			)
		);

	}

	public function widget( $args, $instance ) {

<h2> widget output </h2>
<p> hello world </p>

	}

	public function form( $instance ) {

		// Set default values
		$instance = wp_parse_args( (array) $instance, array( 
			'float' => '',
			'floatnumber_id' => '',
		) );

		// Retrieve an existing value from the database
		$float = !empty( $instance['float'] ) ? $instance['float'] : '';
		$floatnumber_id = !empty( $instance['floatnumber_id'] ) ? $instance['floatnumber_id'] : '';

		// Form fields
		echo '<p>';
		echo '	<label for="' . $this->get_field_id( 'float' ) . '" class="float_label">' . __( 'please fiil the input', 'text_domain' ) . '</label>';
		echo '	<input type="text" id="' . $this->get_field_id( 'float' ) . '" name="' . $this->get_field_name( 'float' ) . '" class="widefat" placeholder="' . esc_attr__( '', 'text_domain' ) . '" value="' . esc_attr( $float ) . '">';
		echo '</p>';

		echo '<p>';
		echo '	<label for="' . $this->get_field_id( 'floatnumber_id' ) . '" class="floatnumber_id_label">' . __( 'number ', 'text_domain' ) . '</label>';
		echo '	<input type="number" id="' . $this->get_field_id( 'floatnumber_id' ) . '" name="' . $this->get_field_name( 'floatnumber_id' ) . '" class="widefat" placeholder="' . esc_attr__( 'enter number', 'text_domain' ) . '" value="' . esc_attr( $floatnumber_id ) . '">';
		echo '	<span class="description">' . __( 'id to see the id', 'text_domain' ) . '</span>';
		echo '</p>';

	}

	public function update( $new_instance, $old_instance ) {

		$instance = $old_instance;

		$instance['float'] = !empty( $new_instance['float'] ) ? strip_tags( $new_instance['float'] ) : '';
		$instance['floatnumber_id'] = !empty( $new_instance['floatnumber_id'] ) ? strip_tags( $new_instance['floatnumber_id'] ) : '';

		return $instance;

	}

}

function floatregister_widgets() {
	register_widget( 'float_widget' );
}
add_action( 'widgets_init', 'floatregister_widgets' );