Container example

Request.php

<?php

class ExampleController
{ 
    /**
     * The new way
     *
     * @param  Transport  $transport
     * @param  Package  $package
     * @param  Weather  $weather
     * @return PendingDelivery
     */
    public function theNewWay(Transport $transport, Package $package, Weather $weather)
    {
        return $transport->when($package->isBig())->useVan()
                         ->when($package->isFragile())->handleWithCaution()
                         ->when($weather->isDangerous())->notifyPossibleDelay()
                         ->deliver();
    }
    
    /**
     * The old way
     *
     * @param  Transport  $transport
     * @param  Package  $package
     * @param  Weather  $weather
     * @return PendingDelivery
     */
    public function theOldWay(Transport $transport, Package $package, Weather $weather)
    {
        if ($package->isBig()) {
            $transport->useVan();
        }
        
        if ($package->isFragile()) {
            $transport->handleWithCaution();
        }
        
        if ($weather->isDangerous()) {
            $transport->notifyPossibleDelay();
        }
        
        return $transport->deliver();
    }
}