Getting Started with Objects with PHP V5
By Matt Zandstra2005-07-01
Why you need to know objects and classes, and how to use them
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This article describes the fundamentals of objects and classes in PHP V5, from the very basics through to inheritance, for experienced object-oriented programmers and those who have not yet been introduced to objects.
As a PHP programmer, you know variables and functions inside-out. Classes and objects, though, might be a different matter. It's possible to create perfectly good systems without defining a single class. Even if you decide to stay away from object-oriented programming in your own code, you will likely need to know object-oriented programming. For example, if you use a third-party library, such as those made available by PHP Extension and Application Repository (PEAR), you will find yourself instantiating objects and calling methods.
Tutorial Pages:
» Why you need to know objects and classes, and how to use them
» What are classes and objects?
» A first class
» Properties
» Methods
» The constructor
» Keywords: Can we have a little privacy in here?
» Working in class context
» Inheritance
» Summary
» Resources
First published by IBM DeveloperWorks
