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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Test, test, and test again
There is no way around this, in order to refactor code, you need a solid set of tests. Refactoring code may well reduce the chances of introducing bugs, but changing the design of code introduces a significant amount of chances to introduce new bugs.
Unintended side-effects will occur during refactoring, where classes are tightly coupled, you may well find making a minor change to one function leading to a negative side-effect in a completely separate class.
Good refactoring effects require good tests. There is simply no way around this.
In addition to this, from a more political standpoint, some companies which have encountered the bad effects of repetitively bad refactoring efforts may become reluctant to refactor code; ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.