What they didn’t tell you about object-oriented programming in PHP



Object-oriented programming is becoming the standard of PHP code; however, just sticking a lot of functions into a class is not enough to change the programming paradigm. What happened in languages such as C++ and Java, being used mostly procedurally, is happening in the PHP world.
During this talk we will discuss the pitfalls of object-oriented programming as taught by the PHP manual, and the common problems that a PHP developer encounters. For example:

  • what to do of getters and setters, and the Tell Don’t Ask principle.
  • when and how to segregate construction logic (new operators); when it doesn’t matter;
  • the Singleton smell and what are the alternatives to this old pattern;
  • the static Utility class smell;
  • the Manager class smell.

We will also see some comparisons with the original object-oriented language, Smalltalk. But sometimes to understand how to do it right, we should first show how to do it wrong.




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