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DevShed:
Simulating Events with PHP 5
February 21, 2006 @ 06:46:23

On DevShed today, there's this new tutorial aimed at more advanced PHP developers concerning how to simulate events in PHP5.

PHP has the drawback of not supporting events. Fortunately, a basic structure can be built to support events in PHP 5. This article tackles that problem with some proof of concept code.

It seemed reasonable to me that some sort of basic structure could be established to support events in PHP 5, so I set out to whip something up as quickly as possible as a proof of concept. The contents of this article are the work of roughly one programming hour and surely stand to be improved upon, but the basic idea is this: instantiate an object and attach event handlers; the handlers will be executed when the events they are associated with are raised.

They look first at how to create a simple object to store the information in and a "collection" class to manage those objects. They move on to the creation of the event handler class and a "collection" class for handling those as well. Finally, they get to the combination of the above items - a class that does an eval on the inputted string and creates an associative array.

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