Online PHP editor | refs for 4pU6I

@ 2016-01-03T15:32:27Z

<?php

class A
{
    private $instance;
    
    public static function getInstance()
    {
        if (null === $this->instance) {
            $this->instance = new self;
        }
        
        return $this->instance;
    }
}

$a = A::getInstance();

var_dump($a);