WordPress Plugin Skeleton

wordpress_plugin_skeleton.php

<?php
/*
Plugin Name: Plugin name
Plugin URI: http://pluginurl.com
Description: Plugin description
Version: 1.0.0
Author: Plugin author
Author URI: http://pluginauthorurl.com
Text Domain: plugin-name
*/

/**
 * Plugin version
 */
define( 'PLUGIN_NAME_VERSION', '1.0.0' );

/**
 * PluginName class
 *
 * @since 1.0.0
 */
class PluginName {
	/**
	 * Static instance
	 *
	 * @since 1.0.0
	 *
	 * @access private
	 * @var instance
	 */
	private static $instance;
	
	/**
	 * Constructor method
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 */
	public function __construct() {
		// Add Plugin Hooks
		add_action( 'plugins_loaded', array( $this, 'add_hooks' ) );

		// Load Translation
		load_plugin_textdomain( 'plugin-name' );

		// Plugin Activation/Deactivation
		register_activation_hook( __FILE__, array( $this, 'plugin_activation' ) );
		register_deactivation_hook( __FILE__, array( $this, 'plugin_deactivation' ) );
	}
	
	/**
	 * Initializes the plugin object and returns its instance
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 * @return object The plugin object instance
	 */
	public static function get_instance() {
		if ( ! isset( self::$instance ) ) {
			self::$instance = new self();
		}
		return self::$instance;
	}

	/**
	 * Adds all the plugin hooks
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 * @return void
	 */
	public function add_hooks() {
		// Actions
		add_action( 'init', array( $this, 'init' ) );
	}
	
	/**
	 * Init this plugin
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 * @return void
	 */
	public function init() {}
	
	/**
	 * What to do when the plugin is being deactivated
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 * @param boolean $network_wide
	 * @return void
	 */
	public function plugin_activation( $network_wide ) {
		if ( is_multisite() && $network_wide ) {
			$ms_sites = wp_get_sites();

			if( 0 < sizeof( $ms_sites ) ) {
				foreach ( $ms_sites as $ms_site ) {
					switch_to_blog( $ms_site['blog_id'] );
					$this->plugin_activated();
					restore_current_blog();
				}
			}
		} else {
			$this->plugin_activated();
		}
	}

	/**
	 * Perform plugin activation tasks
	 *
	 * @since 1.0.0
	 *
	 * @access private
	 * @return void
	 */
	private function plugin_activated() {}

	/**
	 * What to do when the plugin is being activated
	 *
	 * @since 1.0.0
	 *
	 * @access public
	 * @param boolean $network_wide
	 * @return void
	 */
	public function plugin_deactivation( $network_wide ) {
		if ( is_multisite() && $network_wide ) {
			$ms_sites = wp_get_sites();

			if( 0 < sizeof( $ms_sites ) ) {
				foreach ( $ms_sites as $ms_site ) {
					switch_to_blog( $ms_site['blog_id'] );
					$this->plugin_deactivated();
					restore_current_blog();
				}
			}
		} else {
			$this->plugin_deactivated();
		}
	}

	/**
	 * Perform plugin deactivation tasks
	 *
	 * @since 1.0.0
	 *
	 * @access private
	 * @return void
	 */
	private function plugin_deactivated() {}
}

/**
 * Init PluginName
 */
PluginName::get_instance();