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What does the PHP error message “Notice: Use of undefined constant” mean?

... You should quote your array keys: $department = mysql_real_escape_string($_POST['department']); $name = mysql_real_escape_string($_POST['name']); $email = mysql_real_escape_string($_POST['email']); $message = mysql_real_escape_string($_POST['message']); As is, it was looking ...
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Complete Working Sample of the Gmail Three-Fragment Animation Scenario?

...le,move]. Notice that fillAfter(true) is not used anywhere. View2 is right_of View1 and View3 is right_of View2 Having set these rules RelativeLayout takes care of everything else. Animations alter the margins (on move) and [width,height] on scale To access each child (so that you can inflat...
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How do I pass a method as a parameter in Python

...thodToRun() return result obj.method2(obj.method1) Note: I believe a __call__() method does exist, i.e. you could technically do methodToRun.__call__(), but you probably should never do so explicitly. __call__() is meant to be implemented, not to be invoked from your own code. If you wanted me...
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Code Golf: Collatz Conjecture

...t;^v are arrows that change direction the "program counter" wanders. | and _ are conditionals that go up/down or left/right depending on whether the value on stack is true or false. The whole "code arena" wraps around through top-bottom and left-right. – SF. Ma...
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performSelector may cause a leak because its selector is unknown

... should simply be ignored, and it's easy to work around. Here's how: if (!_controller) { return; } SEL selector = NSSelectorFromString(@"someMethod"); IMP imp = [_controller methodForSelector:selector]; void (*func)(id, SEL) = (void *)imp; func(_controller, selector); Or more tersely (though hard...
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Use numpy array in shared memory for multiprocessing

...not available anymore) and @Henry Gomersall's answers. You could use shared_arr.get_lock() to synchronize access when needed: shared_arr = mp.Array(ctypes.c_double, N) # ... def f(i): # could be anything numpy accepts as an index such another numpy array with shared_arr.get_lock(): # synchroniz...
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Scala 2.8 breakOut

...est builder possible. For example, if I were to write Map('a' -> 1).map(_.swap), I'd like to get a Map(1 -> 'a') back. On the other hand, a Map('a' -> 1).map(_._1) can't return a Map (it returns an Iterable). The magic of producing the best possible Builder from the known types of the expr...
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Proper way to return JSON using node or Express

...ing to send a json file you can use streams var usersFilePath = path.join(__dirname, 'users.min.json'); apiRouter.get('/users', function(req, res){ var readable = fs.createReadStream(usersFilePath); readable.pipe(res); }); ...
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Why is require_once so bad to use?

...ng I read about better PHP coding practices keeps saying don't use require_once because of speed. 14 Answers ...
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How do I remove all .pyc files from a project?

... This ignores .pyo files and __pycache__ directories. See my answer. – Wilfred Hughes Apr 7 '14 at 15:03 ...