January 2021
Intermediate to advanced
505 pages
9h 45m
Chinese
Content preview from PHP编程：第4版
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355
第 17 章
调试
PHP
调试是一项后天技能。开发者常说：你得到了想要的绳子，打个蝴蝶结比绑住自己的手好。
按自然常理来说，调试越多就越精通。当然，当代码没达到预期效果时，你会从服务器
环境得到一些不错的提示。在深入调试的概念之前，我们需要看一下蓝图并讨论一下这
些程序环境。每个开发工作室都有自己的配置和做事的方式，所以我们在这里涵盖的是
在理想环境中的，也被称作最佳实践。
在理想情况下，
PHP
开发至少有三种工作环境，它们是开发环境、预演环境和生产环境，
我们可以在下面的内容中探索每一种环境。
开发环境
开发环境是一个创建原始代码的地方，不用担心服务器崩溃和同伴嘲笑。这是一个概念
和理论被证明或证伪的地方 ；代码可以实验性地被创建。因此，在这里，错误报告反馈
必须尽可能多。所有的错误报告都需要被记录并且同时被发送到输出设备（浏览器）。所
有的警告必须尽量敏感和具有描述性。
本章后面的表
17-1
展示了每种环境推荐的进行调试和错误报告的服务器配置。
开发环境的配置是有争议的。不过，如果你的公司有资源，那么就可以用一台独立的服
务器来建立一个完整的代码管理（
SVN
即
Subversion
或
Git
）的地方。如果没有资源，
开发用的电脑可以通过本地的配置来达到这个目的。
localhost
环境有利于开发者尝试
完全不同寻常的东西，
在独立的
PC
上写代码可以完全是实验性的，不用担心影响通用
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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.