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DevShed:
Implementing the Stage Pattern in PHP 5
April 18, 2007 @ 12:49:00

Back with another of their design patterns articles, DevShed looks this time at the Stage pattern - a flexible pattern that allows your application to adapt to requests.

At least at first glance, the definition of the "Stage" pattern seems hard to grasp, which implies that the pattern in question has to be addressed from a practical point of view. In doing so, you'll have a much better idea of how it works, and eventually how it can be applied in concrete cases. [...] Over the course of this two-part series, I'm going to introduce its key concepts, and logically show you how to implement it with copious code samples.

They start by defining a DIV class to act as a foundation for the Stage functionality (with methods to set the ID, the CSS class and the data inside it). They also develop a DivContext class to handle special methods surrounding the inputted DIV. Bringing it all together, they create a default DIV object and pass it into the custom DivContext to get and set the contents of the DIV.

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