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How does PHP 'foreach' actually work?

...$outerArr); Here, $arr will be duplicated to prevent IAP changes on $arr from leaking to $outerArr. In terms of the conditions above, the array is not a reference (is_ref=0) and is used in two places (refcount=2). This requirement is unfortunate and an artifact of the suboptimal implementation (th...
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Detect encoding and make everything UTF-8

I'm reading out lots of texts from various RSS feeds and inserting them into my database. 24 Answers ...
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Java logical operator short-circuiting

...r example: // 2 == 2 will never get evaluated because it is already clear from evaluating // 1 != 1 that the result will be false. (1 != 1) && (2 == 2) // 2 != 2 will never get evaluated because it is already clear from evaluating // 1 == 1 that the result will be true. (1 == 1) || (2 != 2...
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Options for embedding Chromium instead of IE WebBrowser control with WPF/C#

...me on looking into a smaller issue, and get your fix included. We see that from time to time with CefSharp and it's pretty neat. – Per Lundberg Oct 30 '13 at 20:28 1 ...
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Temporarily disable auto_now / auto_now_add

... from Django documentation: docs.djangoproject.com/en/1.9/topics/db/queries/… Be aware that the update() method is converted directly to an SQL statement. It is a bulk operation for direct updates. It doesn’t run any save(...
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Any idea why I need to cast an integer literal to (int) here?

... The compiler tries to subtract 128 from (Integer) instead of casting -128 to Integer. Add () to fix it Integer i3 = (Integer) -128; // doesn't compile Integer i3 = (Integer) (-128); // compiles According to BoltClock in the comments the cast to int works a...
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C++ Const Usage Explanation

... int const * const Method3(int const * const&) const; then read it from right to left. #5 says that the entire function declaration to the left is const, which implies that this is necessarily a member function rather than a free function. #4 says that the pointer to the left is const (may...
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Do I really have a car in my garage? [duplicate]

...e a base class stands fine on it's own, but you might also want to inherit from it. Continuing with the Vehicle example, you may have a Boat in your garage that has all the information you need to operate your boat. But your neighbor may have a SkiBoat, which might also have a method for the lengt...
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Parsing JSON from XmlHttpRequest.responseJSON

...irefox addon running with chrome privs, don't try to eval anything you get from an outside source. Instead, use JSON.parse (at least in FF 3.5 and later). – Ben Combee Dec 29 '09 at 6:25 ...
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Uncaught SyntaxError: Unexpected token with JSON.parse

... products is an object. (creating from an object literal) JSON.parse() is used to convert a string containing JSON notation into a Javascript object. Your code turns the object into a string (by calling .toString()) in order to try to parse it as JSON text....