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Are PHP Variables passed by value or by reference?

... function is changed, it does not get changed outside of the function). To allow a function to modify its arguments, they must be passed by reference. To have an argument to a function always passed by reference, prepend an ampersand (&) to the argument name in the function definition. &l...
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How to find and return a duplicate value in array

...ou're writing this code for some huge scaling data (and if so, you can actually just use C or Python), the provided answer is far more elegant/readable, and isnt' going to run that much slower compared to a linear time solution. furthermore, in theory, the linear time solution requires linear space,...
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How to set specific java version to Maven

On my machine I have two java versions installed: (1.6 and 1.7 installed manually by me). I need both of them for different projects. But for Maven I need 1.7, now my Maven uses 1,6 java version, how can I set Maven to use 1.7? ...
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Insert, on duplicate update in PostgreSQL?

...it would be much slower, because each upsert would be its' own individual call into the database. – baash05 Mar 1 '12 at 0:27 ...
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Is there a recommended format for multi-line imports?

... Personally I go with parentheses when importing more than one component and sort them alphabetically. Like so: from Tkinter import ( Button, Canvas, DISABLED, END, Entry, Frame, LEFT, NORMAL, RI...
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Can you issue pull requests from the command line on GitHub?

... Didn't know about Hub, it is available via homebrew: brew install hub This seems like the correct answer for mac users. – wfbarksdale Dec 3 '12 at 22:58 ...
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How to use Jackson to deserialise an array of objects

...g documentation indicates that Jackson supports deserialising "Arrays of all supported types" but I can't figure out the exact syntax for this. ...
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Find the index of a dict within a list, by matching the dict's value

...as readable or Pythonic is @Emile's answer. Because the intention is not really to create a generator (and using next() for this seems weird to me), the aim is just to get the index. Also, this raises StopIteration, whereas the Python lst.index() method raises ValueError. – Ben...
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How to pass a URI to an intent?

... @malclocke has a better solution. No need to manually convert to string and back. – clocksmith Mar 4 '16 at 23:57 ...
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how to convert milliseconds to date format in android?

...at.format(dateFormat, Long.parseLong(dateInMilliseconds)).toString(); } Call this function convertDate("82233213123","dd/MM/yyyy hh:mm:ss"); share | improve this answer | ...