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Multiton

THIS IS CONSIDERED TO BE AN ANTI-PATTERN! FOR BETTER TESTABILITY AND MAINTAINABILITY USE DEPENDENCY INJECTION!

Purpose

To have only a list of named instances that are used, like a singleton but with n instances.

Examples

  • 2 DB Connectors, e.g. one for MySQL, the other for SQLite
  • multiple Loggers (one for debug messages, one for errors)

UML Diagram

Alt Multiton UML Diagram

Code

You can also find this code on GitHub

Multiton.php

.. literalinclude:: Multiton.php
   :language: php
   :linenos:

Test