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What is the use of the @ symbol in PHP?

... Yeah; down to the second! I had to check answer-id's to see who came in first :) – Sampson Jun 23 '09 at 12:11 ...
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MySQL “Group By” and “Order By”

...umns used to work in practice but should not be relied upon. Per the MySQL documentation "this is useful primarily when all values in each nonaggregated column not named in the GROUP BY are the same for each group. The server is free to choose any value from each group, so unless they are the same, ...
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How do I escape a reserved word in Oracle?

... From a quick search, Oracle appears to use double quotes (", eg "table") and apparently requires the correct case—whereas, for anyone interested, MySQL defaults to using backticks (`) except when set to use double quotes for compatibility. ...
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Class does not implement its superclass's required members

... "A way to declare to the compiler and the built program that you really don't want to be NSCoding-compatible is to do something like this:" required init(coder: NSCoder) { fatalError("NSCoding not supported") } If you know you don't want to be NSCoding compliant, this is an option. I've tak...
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Warning on “diff.renamelimit variable” when doing git push

... The documentation doesn't mention 0 as a special value for diff.renamelimit. So you should set that limit to the value recommended. Or you can try deactivating the rename detection altogether. (git config diff.renames 0) You wi...
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Hashing a string with Sha256

... Encoding.Unicode is Microsoft's misleading name for UTF-16 (a double-wide encoding, used in the Windows world for historical reasons but not used by anyone else). http://msdn.microsoft.com/en-us/library/system.text.encoding.unicode.aspx If you inspect your bytes array, you'll see that ...
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Passing arguments to require (when loading module)

... Based on your comments in this answer, I do what you're trying to do like this: module.exports = function (app, db) { var module = {}; module.auth = function (req, res) { // This will be available 'outside'. // Authy stuff that can be used ...
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What is the purpose of willSet and didSet in Swift?

... But they seem to be called on an array property when doing this: myArrayProperty.removeAtIndex(myIndex) ...Not expected. – Andreas Feb 8 '15 at 18:46 4 ...
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How do I access this object property with an illegal name?

... <?php $x = new StdClass(); $x->{'todo-list'} = 'fred'; var_dump($x); So, $object->{'todo-list'} is the sub-object. If you can set it like that, then you can also read it the same way: echo $x->{'todo-list'}; Another possibility: $todolist = 'todo-list...
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How do Third-Party “tracking cookies” work?

I have read this question here: How Do Internet Advertisers Use Third-Party Cookies? on how third-party tracking cookies work, but am still very confused. I don't understand how if I visit Website A (a normal website with ads) how Website B (an advertising website) can assign my computer an ID, a...