To minimise memory usage, a Flyweight shares as much as possible memory with similar objects. It is needed when a large amount of objects is used that don't differ much in state. A common practice is to hold state in external data structures and pass them to the flyweight object when needed.

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Text.php

.. literalinclude:: Text.php
   :language: php
   :linenos:

Word.php

.. literalinclude:: Word.php
   :language: php
   :linenos:

Character.php

.. literalinclude:: Character.php
   :language: php
   :linenos:

TextFactory.php

.. literalinclude:: TextFactory.php
   :language: php
   :linenos:

Tests/FlyweightTest.php

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