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How to declare a global variable in php?

...']; } From the Manual: An associative array containing references to all variables which are currently defined in the global scope of the script. The variable names are the keys of the array. If you have a set of functions that need some common variables, a class with properties may be a g...
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How can I get the current date and time in UTC or GMT in Java?

...TC. It's most accurate to say that Date itself doesn't have a time zone at all - it's just an instant in time, which could be regarded in multiple time zones. But when you create an instance, it doesn't depend on your time zone. – Jon Skeet Dec 28 '12 at 12:33 ...
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c++11 Return value optimization or move? [duplicate]

...) { Foo result; mangle(result); return result; } This will already allow the use of the move constructor, if one is available. In fact, a local variable can bind to an rvalue reference in a return statement precisely when copy elision is allowed. Your second version actively prohibits copy ...
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iOS Detection of Screenshot?

...onger true. Apple has made it so touchesCancelled:withEvent: is no longer called when the user takes a screenshot. This would effectively break Snapchat entirely, so a couple betas in a new solution was added. Now, the solution is as simple as using NSNotificationCenter to add an observer to UIApp...
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Is “inline” without “static” or “extern” ever useful in C99?

... Actually this excellent answer also answers your question, I think: What does extern inline do? The idea is that "inline" can be used in a header file, and then "extern inline" in a .c file. "extern inline" is just how you ins...
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__declspec(dllexport) 导出符号解决链接失败问题 - C/C++ - 清泛网 - 专注C/C++及内核技术

...不可放在class的前面。 再来个跨平台版本: #ifdef WIN32 #ifdef XXX_EXPORTS #define XXX_API __declspace(dllexport) #elif defined USE_LIB #define XXX_API #else #define XXX_API __declspace(dllimport) #endif #define XXX_LOCAL #else #ifdef XXX_EXPORTS ...
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Printing all global variables/local variables?

How can I print all global variables/local variables? Is that possible in gdb? 3 Answers ...
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Are nested transactions allowed in MySQL?

Does MySQL allow the use of nested transactions? 2 Answers 2 ...
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How to deserialize xml to object [duplicate]

I have this XML, How should i model the Class so i will be able to deserialize it using XmlSerializer object? 2 Answers ...
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Oracle 分组后取每组第一条数据 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...Oracle 分组后取每组第一条数据的SQL如下,亲测有效:SELECT * FROM (SELECT ROW_NUMBER() OVER(PARTITION BY T field1, T Oracle 分组后取每组第一条数据的SQL如下,亲测有效: SELECT * FROM (SELECT ROW_NUMBER() OVER(PARTITION BY T.field1, T.field2 ORDER BY...