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PHP - concatenate or directly insert variables in string

...cations, those won't matter 1. As a sidenote, so my answer is a bit more complete: the day you'll want to do something like this: echo "Welcome $names!"; PHP will interpret your code as if you were trying to use the $names variable -- which doesn't exist. - note that it will only work if you us...
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Overriding fields or properties in subclasses

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What underlies this JavaScript idiom: var self = this?

... See this article on alistapart.com. (Ed: The article has been updated since originally linked) self is being used to maintain a reference to the original this even as the context is changing. It's a technique often used in event handlers (especially in cl...
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Android - Setting a Timeout for an AsyncTask?

...similar to posix thread's join, where the purpose is to wait for thread to complete. In your case it serves as a timeout, which is a circumstantial property. That's why you need to call .get() from handler or from another thread to avoid main UI blocking – Constantine Samoilenk...
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Change auto increment starting number?

...INCREMENT value, but it has been fixed in 5.6.16 and 5.7.4, see bugs.mysql.com/bug.php?id=69882 – Daniel Vandersluis Apr 9 '14 at 14:35 3 ...
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Dynamically changing font size of UILabel

...ont.pointSize; iOS7 Multiple lines: Starting with iOS7, sizeWithFont becomes deprecated. Multiline case is reduced to: factLabel.numberOfLines = 0; factLabel.lineBreakMode = NSLineBreakByWordWrapping; CGSize maximumLabelSize = CGSizeMake(factLabel.frame.size.width, CGFLOAT_MAX); CGSize expectS...
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Restricting input to textbox: allowing only numbers and decimal point

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Why do I get an UnsupportedOperationException when trying to remove an element from a List?

...nkedList<String>(...) or new LinkedList<>(...) (which lets the compiler find out the type parameter). Just new LinkedList(...) creates a "raw" (unparameterized) linked list, which should be avoided. – Paŭlo Ebermann Aug 19 at 13:07 ...
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Any way to delete in vim without overwriting your last yank? [duplicate]

I love vim, but one common gotcha is: 13 Answers 13 ...
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How can I add a custom HTTP header to ajax request with js or jQuery?

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