Worpress OO Plugin template

plugin structure -> DemoPlugin

// http://wp.tutsplus.com/tutorials/plugins/two-ways-to-develop-wordpress-plugins-object-oriented-progamming/

class My_Widget extends WP_Widget {
 
    public function __construct() {
        // widget actual processes
    }
 
    public function form( $instance ) {
        // outputs the options form on admin
    }
 
    public function update( $new_instance, $old_instance ) {
        // processes widget options to be saved
    }
 
    public function widget( $args, $instance ) {
        // outputs the content of the widget
    }
 
}

class DemoPlugin {
 
    public function __construct() {
 
        load_plugin_textdomain( 'demo-plugin', false, dirname( plugin_basename( __FILE__ ) ) . '/lang' );
 
//register hooks using an array with two indexes: the first being $this and the second being the name of the function.
        add_action( 'wp_enqueue_scripts', array( $this, 'register_plugin_styles' ) );
        add_action( 'wp_enqueue_scripts', array( $this, 'register_plugin_scripts' ) );
 
        add_filter( 'the_content', array( $this, 'append_post_notification' ) );
 
    }
 
}