/home/edulekha/studygroup.edulekha.com/ow_core/singleton.php
<?php

trait OW_Singleton
{
    private static $instance;

    public static function getInstance()
    {
        if ( static::$instance == null )
        {
            try
            {
                static::$instance = OW::getClassInstance(static::class);
            }
            catch ( ReflectionException $ex )
            {
                static::$instance = new static();
            }
        }

        return static::$instance;
    }

    private function __construct()
    {
    }
}