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DevShed:
Using Recursive Methods in Object-based PHP Applications (Part 2)
May 09, 2006 @ 06:25:54

DevShed has posted part two of their series dealing with recusion in PHP, this time with a focus on its use in a more object-oriented environment.

Welcome to the second tutorial of the series "Recursion in PHP." Comprised of three parts, this series introduces the fundamentals of recursion in PHP, including the definition and use of recursive functions in procedural PHP scripts, as well as the creation of recursive methods in object-oriented Web applications.

Now, in this second part of the series, I'll explore some advanced uses of recursion in PHP, particularly in the terrain of object-oriented programming. I will develop a couple of object-based applications which use recursive methods for accomplishing their tasks. By the end of this tutorial, you should have a pretty solid grounding in how to define recursive methods within your own PHP classes.

They start with a simple example of OOP with recursion, handling some "HTML widgets" to be output to a page (div, h1, p, and ul tags). With this library created and in place, they work up a "generator" class to actually build the page dynamically. Finally, they bring it all together with the creation of a simple template processor for simple page creation.

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