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How do I get a file extension in PHP?

...non ASCII characters, you need to set the locale first. E.G: setlocale(LC_ALL,'en_US.UTF-8'); Also, note this doesn't take into consideration the file content or mime-type, you only get the extension. But it's what you asked for. Lastly, note that this works only for a file path, not a URL resou...
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Converting JSON String to Dictionary Not List

...datapoints[0][0]). Just to list them, I tried doing datapoints[0:5][0] but all I get is the first datapoint with both elements as opposed to wanting to get the first 5 datapoints containing only the first element. Is there a way to do this? datapoints[0:5][0] doesn't do what you're expecting. dat...
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Making 'git log' ignore changes for certain paths

...e as match_pathspec_depth_1() and for correctness was only supposed to be called from match_pathspec_depth(). match_pathspec_depth() was later renamed to match_pathspec(), so the invariant we expect today is that do_match_pathspec() has no direct callers outside of match_pathspec(). Unfortunately,...
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Purpose of Django setting ‘SECRET_KEY’

... Why didn't they call it a salt then? ;) – datenwolf Jun 15 '13 at 18:00 30 ...
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NSInvocation for Dummies?

...oncept of messages is central to the objective-c philosophy. Any time you call a method, or access a variable of some object, you are sending it a message. NSInvocation comes in handy when you want to send a message to an object at a different point in time, or send the same message several times. N...
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Turn a string into a valid filename?

I have a string that I want to use as a filename, so I want to remove all characters that wouldn't be allowed in filenames, using Python. ...
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Standardize data columns in R

I have a dataset called spam which contains 58 columns and approximately 3500 rows of data related to spam messages. 15 ...
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importing pyspark in python shell

... Suresh2692Suresh2692 2,94322 gold badges1313 silver badges2424 bronze badges ...
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Maximum Java heap size of a 32-bit JVM on a 64-bit OS

...expect to be hitting this limit you should strongly consider starting a parallel track validating a 64-bit JVM for your production environment so you have that ready for when the 32-bit environment breaks down. Otherwise you will have to do that work under pressure, which is never nice. Edit 201...
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Unicode equivalents for \w and \b in Java regular expressions?

...cter class shorthand as "any letter, digit, or connecting punctuation" (usually: underscore). That way, a regex like \w+ matches words like hello , élève , GOÄ_432 or gefräßig . ...