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is_null($x) vs $x === null in PHP [duplicate]
PHP has two (that I know of, and three if you count isset() ) methods to determine if a value is null: is_null() and === null . I have heard, but not confirmed, that === null is faster, but in a code review someone strongly suggested that I use is_null() instead as it is specifically design...
How do I concatenate two strings in C?
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Why can't I do ?
It works if the html file is local (on my C drive), but not if the html file is on a server and the image file is local. Why is that?
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What is wrong with using goto? [duplicate]
I was ramdomming through xkcd and saw this one (if also read some negative texts about them some years ago):
What is actually wrong with it? Why are goto's even possible in C++ then?
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What's the use/meaning of the @ character in variable names in C#?
I discovered that you can start your variable name with a '@' character in C#.
In my C# project I was using a web service (I added a web reference to my project) that was written in Java. One of the interface objects defined in the WSDL had a member variable with the name "params". Obviously this i...
Finding all objects that have a given property inside a collection [duplicate]
I have some complicated object, such as a Cat, which has many properties, such as age, favorite cat food, and so forth.
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实战Nginx与PHP（FastCGI）的安装、配置与优化 - 更多技术 - 清泛网 - 专注...
实战Nginx与PHP（FastCGI）的安装、配置与优化一篇介绍nginx和php-fmp配置，安装和使用的博文，文章将为何将nginx叫做反向代理服务器讲明白了，也能从中看出为什么ngnix会apache性能更加...一篇介绍nginx和php-fmp配置，安装和使用的博...
What is your favorite C programming trick? [closed]
For example, I recently came across this in the linux kernel:
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现实版《道士下山》：道长老梁的四面人生 - 轻松一刻 - 清泛网 - 专注C/C++...
现实版《道士下山》：道长老梁的四面人生一个云南大学毕业的大学生，缘何出家成为道士？成为道士之后，又过着怎样的生活？《道士下山》电影里，描述了艺术中的道士形象，而真实的道 一个云南大学毕业的大学生，缘何...
List all base classes in a hierarchy of given class?
Given a class Foo (whether it is a new-style class or not), how do you generate all the base classes - anywhere in the inheritance hierarchy - it issubclass of?
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