<?php
/**
 * Trait implementing singleton design pattern.
 */

namespace Anax;

trait TSingleton
{
    /**
     * Properties
     *
     */
    static private $instance = null;


    /**
     * Create or get singleton instance of class.
     *
     */
    public static function instance()
    {
        return isset(static::$instance)
            ? self::$instance
            : self::$instance = new static;
    }
}