Decouple an abstraction from its implementation so that the two can vary independently.

• Symfony DoctrineBridge

You can also find these code on GitHub

Workshop.php

.. literalinclude:: Workshop.php
   :language: php
   :linenos:

Assemble.php

.. literalinclude:: Assemble.php
   :language: php
   :linenos:

Produce.php

.. literalinclude:: Produce.php
   :language: php
   :linenos:

Vehicle.php

.. literalinclude:: Vehicle.php
   :language: php
   :linenos:

Motorcycle.php

.. literalinclude:: Motorcycle.php
   :language: php
   :linenos:

Car.php

.. literalinclude:: Car.php
   :language: php
   :linenos:

Tests/BridgeTest.php

.. literalinclude:: Tests/BridgeTest.php
   :language: php
   :linenos: