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Implementing the Data Mapper Design Pattern in PHP 5

In this first part of a five-part series, I introduce you to implementing the Data Mapper design pattern in PHP 5. This pattern attempts to solve the issue of the strong coupling that often exists between the domain objects present in an application and the underlying persistence mechanism. This benefit comes at a cost, since data mappers add a new layer of complexity. Living with this minor trade-off is quite worthwhile, though, as you'll see.
- Since the web is in constant evolution and merges a variety of technologies and languages, developing web applications (specially mid-sized and large-scale ones) has become a challenging process. Indeed, applications require extensive planning, modeling and testing, before reaching a stable depl...
Wed, 10 Mar 2010 09:00:09 -0500 ~ Read more

Defining an Abstract Class with Restrictive Constructors in PHP 5

In this second part of a four-part series, I rebuild the example application developed in the previous tutorial. As you'll recall, it used a protected constructor to prevent the instantiation of the base array iterator class. In this case, a better result will be achieved by declaring the iterator abstract; still, the example demonstrates a simple utilization of a restrictive constructor in a concrete situation.
- Unquestionably, the introduction of a more robust object model in PHP 5 has provided developers with additional features that allow them to build efficient and thorough object-oriented applications without the need to appeal to the ugly programming hacks used frequently in the bad old days of PHP ...
Tue, 09 Mar 2010 09:00:09 -0500 ~ Read more

The Reflection API: Working with Reflected Methods

This third part of a seven-part series explores the methods of the PHP Reflection API. You will learn how to take advantage of their functionality to retrieve useful information about the methods defined by a reflected class.
- One of today's most powerful approaches for retrieving information about the internal structure of classes and interfaces in PHP 5 is via the language's native reflection API. What's more, not only does this API comes packaged with a huge variety of methods that let developers perform all sorts of ...
Mon, 08 Mar 2010 09:00:12 -0500 ~ Read more

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