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Can I extend a class using more than 1 class in PHP?

... Answering your edit : If you really want to fake multiple inheritance, you can use the magic function __call(). This is ugly though it works from class A user's point of view : class B { public function method_from_b($s) { echo $s; } } c...
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Python append() vs. + operator on lists, why do these give different results?

...quences) by concatenating the element. The append-method however does literally what you ask: append the object on the right-hand side that you give it (the array or any other object), instead of taking its elements. An alternative Use extend() if you want to use a function that acts similar to the ...
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MySQL: Insert record if not exists in table

... I'm not actually suggesting that you do this, as the UNIQUE index as suggested by Piskvor and others is a far better way to do it, but you can actually do what you were attempting: CREATE TABLE `table_listnames` ( `id` int(11) NOT NUL...
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Twitter Bootstrap 3: how to use media queries?

...electors used in BS4. There is no "lowest" setting in BS4 because "extra small" is the default. I.e. you would first code the XS size and then have these media overrides afterwards. @media(min-width:576px){} @media(min-width:768px){} @media(min-width:992px){} @media(min-width:1200px){} Update 201...
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How to dynamically change a web page's title?

...like, document.title = "This is the new page title.";, but that would totally defeat the purpose of SEO. Most crawlers aren't going to support javascript in the first place, so they will take whatever is in the element as the page title. If you want this to be compatible with most of the...
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Resolving MSB3247 - Found conflicts between different versions of the same dependent assembly

...sn't show up, make sure that the checkbox at the bottom of the dialog Show all settings is checked. In the tools/options page that appears, set the MSBuild project build output verbosity level to the appropriate setting depending on your version: Diagnostics when on VS2012, VS2013 or VS2015 (the ...
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Can I change the fill color of an svg path with CSS?

...h the element, just as when styling HTML. If you just want to apply it to all SVG paths, you could use, for example: ​path { fill: blue; }​ External CSS appears to override the path's fill attribute, at least in WebKit and Gecko-based browsers I tested. Of course, if you write, say, &lt...
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Why does this method print 4?

... When we first get into main, the space left over is X-M. Each recursive call takes up R more memory. So for 1 recursive call (1 more than original), the memory use is M + R. Suppose that StackOverflowError is thrown after C successful recursive calls, that is, M + C * R <= X and M + C * (R + 1)...
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Where is Developer Command Prompt for VS2013?

...nd prompt in Visual Studio 2013. By default, the command prompt is not installed in Visual Studio 2013. 9 Answers ...
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Find the nth occurrence of substring in a string

...ad been thinking of doing the equivalent of .rfind('XXX'), but that would fall apart if 'XXX' appears later in the input anyway. – Nikhil Chelliah Jul 7 '10 at 4:17 ...