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What is the difference between HTTP_HOST and SERVER_NAME in PHP?

What is the difference between HTTP_HOST and SERVER_NAME in PHP? 10 Answers 10 ...
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How can I calculate an md5 checksum of a directory?

...l files of a particular type ( *.py for example) placed under a directory and all sub-directories. 15 Answers ...
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Visual Studio retrieving an incorrect path to a project from somewhere

Visual Studio (and possibly TFS) has somehow (I think perhaps during a source control merge) become confused about the path of a project within my solution. ...
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SQL how to make null values come last when sorting ascending

...e with a datetime field. The field in question can be null. I have a query and I want the results sorted ascendingly by the datetime field, however I want rows where the datetime field is null at the end of the list, not at the beginning. ...
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Pass a data.frame column name to a function

I'm trying to write a function to accept a data.frame ( x ) and a column from it. The function performs some calculations on x and later returns another data.frame. I'm stuck on the best-practices method to pass the column name to the function. ...
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How can I get last characters of a string

...th - 1); // => "1" This gets the characters starting at id.length - 5 and, since the second argument for .substr() is omitted, continues to the end of the string. You can also use the .slice() method as others have pointed out below. If you're simply looking to find the characters after the u...
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Chained method calls indentation style in Python [duplicate]

... The need for this style becomes more obvious as method names get longer and as methods start taking arguments: return some_collection.get_objects(locator=l5) \ .get_distinct(case_insensitive=True) \ .filter(predicate=query(q5)) \ ...
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What is a Context Free Grammar?

...to me what a context free grammar is? After looking at the Wikipedia entry and then the Wikipedia entry on formal grammar, I am left utterly and totally befuddled. Would someone be so kind as to explain what these things are? ...
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How to write inline if statement for print?

...n Python 2.5) expression_if_true if condition else expression_if_false And note, that both print a and b = a are statements. Only the a part is an expression. So if you write print a if b else 0 it means print (a if b else 0) and similarly when you write x = a if b else 0 it means x = ...
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java get file size efficiently

... Well, I tried to measure it up with the code below: For runs = 1 and iterations = 1 the URL method is fastest most times followed by channel. I run this with some pause fresh about 10 times. So for one time access, using the URL is the fastest way I can think of: LENGTH sum: 10626, per It...