functionality-plugin.php

<?php
 /**
  * Plugin Name: Functionality Plugin
  * Plugin URI: http://www.doitwithwp.com/putting-things-where-they-belong/
  * Description: Where all custom functionality that affects the site belongs
  * Author: Dave Clements
  * Author URI: https://www.theukedge.com
  * Version: 1.0.0
  * License: GPL-2.0+
  * License URI: http://www.gnu.org/licenses/gpl-2.0.txt
  *
  * @package  Functionality Plugin
  */

/** -------------------------------- *
 * constants
 *
 * Some useful constants for a plugin to make use of.
 *  -------------------------------- */

if ( ! defined( 'FUNC_PLUGIN_DIR' ) ) {
	define( 'FUNC_PLUGIN_DIR', plugin_dir_path( __FILE__ ) );
}

if ( ! defined( 'FUNC_PLUGIN_URL' ) ) {
	define( 'FUNC_PLUGIN_URL', plugin_dir_url( __FILE__ ) );
}

if ( ! defined( 'FUNC_PLUGIN_VERSION' ) ) {
	define( 'FUNC_PLUGIN_VERSION', '1.0.0' );
}

/** -------------------------------- *
 * includes
 *
 * Individual feature includes go here.
 * ---------------------------------- */

/* include( FUNC_PLUGIN_DIR . 'includes/filename.php' ); */