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Calculate number of hours between 2 dates in PHP

... The newer PHP-Versions provide some new classes called DateTime, DateInterval, DateTimeZone and DatePeriod. The cool thing about this classes is, that it considers different timezones, leap years, leap seconds, summertime, etc. And on top of that it's very easy to use. Here...
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What are the “loose objects” that the Git GUI refers to?

... first two characters to improve performance of the File system as now not all the objects are stored in the same directory) Objects stored as above are referred to as Loose objects. When you start up with your repo, you mostly have loose objects. As the number goes high, it becomes inefficient an...
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Java: using switch statement with enum under subclass

... Ok i feel so stupid :-( You are totally right, i was convinced i tried this exact line and got an error with that so i moved to qualify case, but your suggestion DOES work. – Popokoko Apr 15 '12 at 11:09 ...
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Minimum and maximum date

I was wondering which is the minimum and the maximum date allowed for a Javascript Date object. I found that the minimum date is something like 200000 B.C., but I couldn't get any reference about it. ...
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git - Server host key not cached

...be able to do your git push origin. As an alternative, you could also manually add the key of origin to .ssh/known_hosts but this requires that you adhere to the format of the known_hosts file as described in the man page of sshd (Section AUTHORIZED_KEYS FILE FORMAT). ...
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How is “mvn clean install” different from “mvn install”?

What is the difference between mvn clean install and mvn install ? 5 Answers 5 ...
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What is the difference between an ORM and an ODM?

... mongoose, mongoid are all ODM's. I guess for a noSQL we can only have ODMs. – Luna Lovegood Nov 14 '18 at 4:04 add a comme...
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How to tell if a tag failed to load

I'm dynamically adding <script> tags to a page's <head> , and I'd like to be able to tell whether the loading failed in some way -- a 404, a script error in the loaded script, whatever. ...
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How do I create an array of strings in C?

...ar *a[2]; a[0] = "blah"; a[1] = "hmm"; When you do it like this you will allocate an array of two pointers to const char. These pointers will then be set to the addresses of the static strings "blah" and "hmm". If you do want to be able to change the actual string content, the you have to do some...
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What is Haskell used for in the real world? [closed]

... to be able to easily roll back every change if some object deep in the call hierarchy decided the message is flawed? How about having a history of different states? Many housekeeping tasks made for you: deconstructing data structures (PatternMatching), storing variable bindings (LexicalScop...