Online PHP editor | refs for Rkj5M

@ 2015-11-09T15:56:59Z

<?php

class Foo
{
    public function __construct()
    {
        echo 'created!';
    }
}

class Bar
{
    protected $foo;
    
    public function getFoo()
    {
        return $this->foo ?? ($this->foo = new Foo);
    }
}

$bar = new Bar;

var_dump($bar->getFoo(), $bar->getFoo(), $bar->getFoo());