WebDevStudios / CMB2

init.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 68 and the first side effect is on line 190.

/**
 * The initation loader for CMB2, and the main plugin file.
 *
 * @category     WordPress_Plugin
 * @package      CMB2
 * @author       WebDevStudios
 * @license      GPL-2.0+
 * @link         http://webdevstudios.com
 *
 * Plugin Name:  CMB2
 * Plugin URI:   https://github.com/WebDevStudios/CMB2
 * Description:  CMB2 will create metaboxes and forms with custom fields that will blow your mind.
 * Author:       WebDevStudios
 * Author URI:   http://webdevstudios.com
 * Contributors: WebDevStudios (@webdevstudios / webdevstudios.com)
 *               Justin Sternberg (@jtsternberg / dsgnwrks.pro)
 *               Jared Atchison (@jaredatch / jaredatchison.com)
 *               Bill Erickson (@billerickson / billerickson.net)
 *               Andrew Norcross (@norcross / andrewnorcross.com)
 *
 * Version:      2.2.4
 *
 * Text Domain:  cmb2
 * Domain Path:  languages
 *
 *
 * Released under the GPL license
 * http://www.opensource.org/licenses/gpl-license.php
 *
 * This is an add-on for WordPress
 * https://wordpress.org/
 *
 * **********************************************************************
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * **********************************************************************
 */

/**
 * *********************************************************************
 *               You should not edit the code below
 *               (or any code in the included files)
 *               or things might explode!
 * ***********************************************************************
 */

if ( ! class_exists( 'CMB2_Bootstrap_225_Trunk', false ) ) {

	/**
	 * Handles checking for and loading the newest version of CMB2
	 *
	 * @since  2.0.0
	 *
	 * @category  WordPress_Plugin
	 * @package   CMB2
	 * @author    WebDevStudios
	 * @license   GPL-2.0+
	 * @link      http://webdevstudios.com
	 */
	class CMB2_Bootstrap_225_Trunk {

PSR1 recommends that each class must be in a namespace of at least one level to avoid collisions.

		/**
		 * Current version number
		 *
		 * @var   string
		 * @since 1.0.0
		 */
		const VERSION = '2.2.4';

		/**
		 * Current version hook priority.
		 * Will decrement with each release
		 *
		 * @var   int
		 * @since 2.0.0
		 */
		const PRIORITY = 9977;

		/**
		 * Single instance of the CMB2_Bootstrap_225_Trunk object
		 *
		 * @var CMB2_Bootstrap_225_Trunk
		 */
		public static $single_instance = null;

		/**
		 * Creates/returns the single instance CMB2_Bootstrap_225_Trunk object
		 *
		 * @since  2.0.0
		 * @return CMB2_Bootstrap_225_Trunk Single instance object
		 */
		public static function initiate() {
			if ( null === self::$single_instance ) {
				self::$single_instance = new self();
			}
			return self::$single_instance;
		}

		/**
		 * Starts the version checking process.
		 * Creates CMB2_LOADED definition for early detection by other scripts
		 *
		 * Hooks CMB2 inclusion to the init hook on a high priority which decrements
		 * (increasing the priority) with each version release.
		 *
		 * @since 2.0.0
		 */
		private function __construct() {
			/**
			 * A constant you can use to check if CMB2 is loaded
			 * for your plugins/themes with CMB2 dependency
			 */
			if ( ! defined( 'CMB2_LOADED' ) ) {
				define( 'CMB2_LOADED', self::PRIORITY );
			}

			add_action( 'init', array( $this, 'include_cmb' ), self::PRIORITY );
		}

		/**
		 * A final check if CMB2 exists before kicking off our CMB2 loading.
		 * CMB2_VERSION and CMB2_DIR constants are set at this point.
		 *
		 * @since  2.0.0
		 */
		public function include_cmb() {
			if ( class_exists( 'CMB2', false ) ) {
				return;
			}

			if ( ! defined( 'CMB2_VERSION' ) ) {
				define( 'CMB2_VERSION', self::VERSION );
			}

			if ( ! defined( 'CMB2_DIR' ) ) {
				define( 'CMB2_DIR', trailingslashit( dirname( __FILE__ ) ) );
			}

			$this->l10ni18n();

			// Include helper functions.
			require_once 'includes/CMB2_Base.php';
			require_once 'includes/CMB2.php';
			require_once 'includes/helper-functions.php';

			// Now kick off the class autoloader.
			spl_autoload_register( 'cmb2_autoload_classes' );

			// Kick the whole thing off.
			require_once( cmb2_dir( 'bootstrap.php' ) );
			cmb2_bootstrap();
		}

		/**
		 * Registers CMB2 text domain path
		 *
		 * @since  2.0.0
		 */
		public function l10ni18n() {

			$loaded = load_plugin_textdomain( 'cmb2', false, '/languages/' );

			if ( ! $loaded ) {
				$loaded = load_muplugin_textdomain( 'cmb2', '/languages/' );
			}

			if ( ! $loaded ) {
				$loaded = load_theme_textdomain( 'cmb2', get_stylesheet_directory() . '/languages/' );
			}

			if ( ! $loaded ) {
				$locale = apply_filters( 'plugin_locale', get_locale(), 'cmb2' );
				$mofile = dirname( __FILE__ ) . '/languages/cmb2-' . $locale . '.mo';
				load_textdomain( 'cmb2', $mofile );
			}

		}

	}

	// Make it so...
	CMB2_Bootstrap_225_Trunk::initiate();

}// End if().

43% of this comment could be valid code. Did you maybe forget this after debugging?