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PHP 5 CMS Framework Development by Martin Brampton

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Exploring PHP and object design

Before we look at specific solutions, we can explore various helpful aspects of PHP and also look at the pattern known as Singleton.

Autoloading

We want to automate the loading of code and PHP provided a tool to do exactly this with the launch of PHP5. It was the __autoload function. When PHP came across a class it did not know about, it called __autoload, passing the class name as parameter. It was up to the user to code a suitable body for the function.

This was a good start, and in the first edition it was the solution to the problem. However, PHP has moved on and improved the handling of autoloading. The obvious problem with __autoload was that there could only be one such function. Someone writing, ...

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