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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Factory Method
The Factory Method differs from the ordinary Simple Factory on the basis that instead of us having one factory, we can have many.
So why would you want to do this? Well, in order to understand this, we must look to the open/closed principle (OCP). Bertrand Meyer is usually associated with having originated the term open/closed principle in his book, Object-oriented Software Construction. Meyer stated the following:
"software entities (classes, modules, functions, etc.) should be open for extension, but closed for modification"
Where a software entity needs to be extended, this should be possible without modifying its source code. Those of you who are familiar with the SOLID (single responsibility, open-closed, Liskov substitution ...
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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.
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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.