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Best way to test for a variable's existence in PHP; isset() is clearly broken

... This looks a bit ugly to me, but in the case where you're actually checking an array element, it makes much more sense: isset($foo[$bar]) becomes array_key_exists($bar, $foo) – Arild Aug 25 '14 at 14:12 ...
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Best way to add Activity to an Android project in Eclipse?

When adding an activity to an existing Android project, I manually create a new class - is that the best / preferred way? How do others handle that? ...
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Failed to install Python Cryptography package with PIP and setup.py

When I try to install the Cryptography package for Python through either pip install cryptography or by downloading the package from their site and running python setup.py , I get the following error: ...
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Calling closure assigned to object property directly

...sn't work on a StdClass. Before PHP7, you'd have to implement the magic __call method to intercept the call and invoke the callback (which is not possible for StdClass of course, because you cannot add the __call method) class Foo { public function __call($method, $args) { if(is_...
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Using Python's os.path, how do I go up one directory?

... os.path.abspath(os.path.join(os.path.dirname( __file__ ), '..', 'templates')) As far as where the templates folder should go, I don't know since Django 1.4 just came out and I haven't looked at it yet. You should probably ask another question on SE to solve that issue....
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List the queries running on SQL Server

... You can run the sp_who command to get a list of all the current users, sessions and processes. You can then run the KILL command on any spid that is blocking others. share | ...
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Illegal mix of collations (utf8_unicode_ci,IMPLICIT) and (utf8_general_ci,IMPLICIT) for operation '=

...: SET @rUsername = ‘aname’ COLLATE utf8_unicode_ci; -- COLLATE added CALL updateProductUsers(@rUsername, @rProductID, @rPerm); Option 2: add COLLATE to the WHERE clause: CREATE PROCEDURE updateProductUsers( IN rUsername VARCHAR(24), IN rProductID INT UNSIGNED, IN rPerm VARCHAR(16...
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Failed to load c++ bson extension

... I guess you did not have the make tools available when you installed your mongodb library. I suggest you do xcode-select --install (on a mac) or sudo apt-get install gcc make build-essential (on ubuntu) and run rm -rf node_modules npm cache clean npm install OR just npm update bas...
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Generating Guids in Ruby

I have problem that is really easily solved with Guids. 10 Answers 10 ...
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Deserialize JSON into C# dynamic object?

...ere. I modified the code slightly to fix a bug and suit my coding style. All you need is this code and a reference to System.Web.Extensions from your project: using System; using System.Collections; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Dynamic; usin...