symfony/tests/Symfony/Tests/Component/DependencyInjection/Fixtures/includes/classes.php

<?php

function sc_configure($instance)
{
    $instance->configure();
}

class BarClass
{
}

class BazClass
{
    public function configure($instance)
    {
        $instance->configure();
    }

    static public function getInstance()
    {
        return new self();
    }

    static public function configureStatic($instance)
    {
        $instance->configure();
    }

    static public function configureStatic1()
    {
    }
}

class BarUserClass
{
    public $bar;

    public function __construct(BarClass $bar)
    {
        $this->bar = $bar;
    }
}