Wordpress_Widget_Template.php

<?php
/**
 * Plugin Name: Messager Widget
 * Plugin URI: http://point47.com
 * Description: Displays any message designated
 * Version: 1.0
 * Author: Sorin Gitlan
 * Author URI: http://point47.com
 */

class Messager extends WP_Widget {

    public function __construct(){
        $params = array(
            'description' => 'Displays message to readers',
            'name'        => 'Messager'
        );

        parent::__construct('Messager', '', $params);
    }

    /**
     * Responsible for the form in the Widget management area
     * @param  Array $instance The form array Post data
     * @return String
     */
    public function form($instance){

        extract($instance);
        ?>

        <p>
            <label for="<?php echo $this->get_field_id('title'); ?>">Title: </label>
            <input class="widefat" 
                id="<?php echo $this->get_field_id('title'); ?>"
                name="<?php echo $this->get_field_name('title'); ?>"
                value="<?php if(isset($title)) echo esc_attr($title); ?>"
            >
        </p>

        <p>
            <label for="<?php echo $this->get_field_id('description'); ?>">Description: </label>
            <textarea class="widefat" rows="8"
                id="<?php echo $this->get_field_id('description'); ?>"
                name="<?php echo $this->get_field_name('description'); ?>"><?php if(isset($description)) echo esc_attr($description); ?></textarea>


        </p>

        <?php

    }

    /**
     * Responsible to display the results of our form
     * @param Array $args       the values that can be used to tailor how the widget displays
     * @param Array $instance   the values that are available from the widget area
     * @return String 
     */
    public function widget($args, $instance){

        extract($args);
        extract($instance);

        $title = apply_filters( 'widget_title', $title );
        $description = apply_filters( 'widget_description', $description );

        if(empty($title)) $title = 'My status';

        echo $before_widget;
            echo $before_title . $title . $after_title;
            echo '<p>'.$description.'</p>';
        echo $after_widget;

    }

}

add_action('widgets_init', function(){
    register_widget( 'Messager' );
});