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Reference - What does this error mean in PHP?

...ter while programming PHP and have no clue how to fix them. This is also a Community Wiki, so everyone is invited to participate adding to and maintaining this list. ...
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How can I maintain fragment state when added to the back stack?

...e feeling I'm after the same thing as this question, but I've included a complete code sample to help root out the issue: ...
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What does middleware and app.use actually mean in Expressjs?

...q & res) and a next function. Middleware expects the layer to do some computation, augment the parameters and then call next. A stack doesn't do anything unless you handle it. Express will handle the stack every time an incoming HTTP request is caught on the server. With middleware you handle ...
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Just what is an IntPtr exactly?

Through using IntelliSense and looking at other people's code, I have come across this IntPtr type; every time it has needed to be used I have simply put null or IntPtr.Zero and found most functions to work. What exactly is it and when/why is it used? ...
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Reference: What is variable scope, which variables are accessible from where and what are “undefined

...sues may seem annoying, but limited variable scope is essential to writing complex applications! If every variable you declare would be available from everywhere else inside your application, you'd be stepping all over your variables with no real way to track what changes what. There are only so man...
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Running shell command and capturing the output

I want to write a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line. ...
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Why is there “data” and “newtype” in Haskell? [duplicate]

...can be evaluated as long as you don't try to peek inside. Couldn't the compiler handle this for itself. No, not really—this is a case where as the programmer you get to decide whether the constructor is strict or lazy. To understand when and how to make constructors strict or lazy, you have...
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Task vs Thread differences [duplicate]

...t; abstraction is pivotal to the async support in C# 5. In general, I'd recommend that you use the higher level abstraction wherever you can: in modern C# code you should rarely need to explicitly start your own thread. sha...
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What is the difference between a symbolic link and a hard link?

...rote a blog on that after some reading and experiments csharpbsharp.tumblr.com – Adnan Bhatti Mar 12 '13 at 4:45 1 ...
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When is TCP option SO_LINGER (0) required?

...on. In some legacy code I'm handling now, the option is used. The customer complains about RST as response to FIN from its side on connection close from its side. ...