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Loop code for each file in a directory [duplicate]

...want to loop through and do some file calculations on. It might just be lack of sleep, but how would I use PHP to look in a given directory, and loop through each file using some sort of for loop? ...
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When to use in vs ref vs out

Someone asked me the other day when they should use the parameter keyword out instead of ref . While I (I think) understand the difference between the ref and out keywords (that has been asked before ) and the best explanation seems to be that ref == in and out , what are some (hypothet...
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Why doesn't Python have a sign function?

...dge cases - which sometimes might require the call to cmp(x,0). I don't know why it's not a built-in, but I have some thoughts. copysign(x,y): Return x with the sign of y. Most importantly, copysign is a superset of sign! Calling copysign with x=1 is the same as a sign function. So you could...
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Window.open and pass parameters by post method

...o pass by post method.I've found solution, but unfortunately it doesn't work. This is my code: 10 Answers ...
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Groovy: what's the purpose of “def” in “def x = 0”?

In the following piece of code (taken from the Groovy Semantics Manual page ), why prefix the assignment with the keyword def ? ...
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What does int argc, char *argv[] mean?

...++ IDE's and compilers, when it generates the main function for you, it looks like this: 8 Answers ...
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Making Python loggers output all messages to stdout in addition to log file

Is there a way to make Python logging using the logging module automatically output things to stdout in addition to the log file where they are supposed to go? For example, I'd like all calls to logger.warning , logger.critical , logger.error to go to their intended places but in addition al...
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How I can I lazily read multiple JSON values from a file/stream in Python?

I'd like to read multiple JSON objects from a file/stream in Python, one at a time. Unfortunately json.load() just .read() s until end-of-file; there doesn't seem to be any way to use it to read a single object or to lazily iterate over the objects. ...
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Error Domain=NSURLErrorDomain Code=-1005 “The network connection was lost.”

I have an application which works fine on Xcode6-Beta1 and Xcode6-Beta2 with both iOS7 and iOS8. But with Xcode6-Beta3, Beta4, Beta5 I'm facing network issues with iOS8 but everything works fine on iOS7. I get the error "The network connection was lost." . The error is as follows: ...
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Can I call a constructor from another constructor (do constructor chaining) in C++?

... JohnIdolJohnIdol 43.6k5858 gold badges152152 silver badges231231 bronze badges ...