September 2016
Intermediate to advanced
270 pages
5h 16m
English
Content preview from Mastering PHP Design PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Adapter
There are two types of Adapter pattern. I have a clear preference for Object Adapters over Class Adapters where possible; I will explain this in detail later.
The Adapter pattern allows an existing class to be used with an interface that it doesn't match. It is often used to allow existing classes to work with others without needing to alter their source code.
This can be quite useful in a polymorphic setting where you are using third-party libraries, each with their own interface.
Fundamentally, an Adapter helps two incompatible interfaces work together. Otherwise incompatible classes can be made to work together by converting the interface of one class into an interface expected by the clients.
Class Adapter
In a Class Adapter, we use inheritance ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.