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Is there a use-case for singletons with database access in PHP?
... additional information.
Even Erich Gamma, one of the Singleton pattern's inventors, doubts this pattern nowadays:
"I'm in favor of dropping Singleton. Its use is almost always a design smell"
Further reading
How is testing the registry pattern or singleton hard in PHP?
What are the disadva...
My Understanding of HTTP Polling, Long Polling, HTTP Streaming and WebSockets
...re I understood all of the concepts and the reasoning why technology X was invented over technology Y and so on. So here goes:
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Proper use of the IDisposable interface
...7542c0
In 35 pages he explains the problems of using binary objects, and invents COM before your eyes. Once you realize the why of COM, the remaining 300 pages are obvious, and just detail Microsoft's implementation.
I think every programmer who has ever dealt with objects or COM should, at the v...
Best practice multi language website
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I suggest you not to invent a wheel and use gettext and ISO languages abbrevs list. Have you seen how i18n/l10n implemented in popular CMSes or frameworks?
Using gettext you will have a powerful tool where many of cases is already implemented l...
NOT using repository pattern, use the ORM as is (EF)
...de, 3 level of navigation property search. The whole reason IQueryable was invented was to be able to compose any combination of search against database. Everything looks great in theory, but user's need wins above theory.
Again: An entity with 20+ fields is incorrectly modeled. It's a GOD entity...
ReactJS Two components communicating
...xperience thanks to hot reloading. Impressive livecoding ala Bret Victor's Inventing on Principle video is possible!
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Difference between GIT and CVS
...ssible in Git. The fact that changes are per-file, grouped together led to invention of GNU Changelog format for commit messages in CVS; Git users use (and some Git tools expect) different convention, with single line describing (summarizing) change, followed by empty line, followed by more detailed...
Java 理论与实践: 线程池与工作队列 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...息。
util.concurrent 库也激发了 JSR 166，JSR 166 是一个 Java 社区过程（Java Community Process (JCP)）工作组，他们正在打算开发一组包含在 java.util.concurrent 包下的 Java 类库中的并发实用程序，这个包应该用于 Java 开发工具箱 1.5 发行版。
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那些年 O2O创业我踩了十个坑 - 资讯 - 清泛网 - 专注C/C++及内核技术
...户调研和试验，选择最可能是自己的用户，找一两个高端社区，至少花一个月时间进行深度市场推广，没有企业公众号可以用个人订阅号作为对外窗口，再加一个固定电话，甚至手机都可以；制定一个不要太低的价格表，和周边...
Database development mistakes made by application developers [closed]
...ys are those that have absolutely no meaning outside the system. They are invented purely for identifying the entity and are typically auto-incrementing fields (SQL Server, MySQL, others) or sequences (most notably Oracle).
In my opinion you should always use surrogate keys. This issue has come u...