PHP Class boilerplate - *The Singleton Pattern*

php-class-boilderplate.php

<?php
/**
 * MY CLASS NAME
 *
 * @package MY PACKAGE
 * @since 1.0.0
 */

if( ! class_exists( 'MY_CLASS_NAME' ) ) :

	/**
	 * MY_CLASS_NAME
	 *
	 * @since 1.0.0
	 */
	class MY_CLASS_NAME {

		/**
		 * Instance
		 *
		 * @access private
		 * @since 1.0.0
		 */
		private static $instance;

		/**
		 * Initiator
		 *
		 * @since 1.0.0
		 * @return object initialized object of class.
		 */
		public static function instance(){
			if ( ! isset( self::$instance ) ) {
				self::$instance = new self;
			}
			return self::$instance;
		}

		/**
		 * Constructor
		 *
		 * @since 1.0.0
		 */
		public function __construct() {
			
		}

	}

	/**
	 * Kicking this off by calling 'instance()' method
	 */
	MY_CLASS_NAME::instance();
	// OR
	// $my_class_name = MY_CLASS_NAME::instance();

endif;