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instantiate a class from a variable in PHP?

... sort of thing you'll see wrapped up in a Factory pattern. See Namespaces and dynamic language features for further details. share | improve this answer | follow ...
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Saving images in Python at a very high quality

... If you are using matplotlib and trying to get good figures in a latex document, save as an eps. Specifically, try something like this after running the commands to plot the image: plt.savefig('destination_path.eps', format='eps') I have found that ep...
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How to fix the aspect ratio in ggplot?

... answered Aug 14 '11 at 15:26 AndrieAndrie 157k3636 gold badges403403 silver badges464464 bronze badges ...
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Git push/clone to new server

I'm just learning Git and there is something I can't work out. After creating and using a git repository locally on my Mac, can I push a copy to another server somewhere else? I am behind a firewall so unfortunately I can't run git clone from the other machine. ...
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How to reload apache configuration for a site without restarting apache

... should be possible using the command sudo /etc/init.d/apache2 reload hope that helps share | improve this answer | follow ...
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Using member variable in lambda capture list inside a member function

... I believe VS2010 to be right this time, and I'd check if I had the standard handy, but currently I don't. Now, it's exactly like the error message says: You can't capture stuff outside of the enclosing scope of the lambda.† grid is not in the enclosing scope, bu...
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Is there a faster/shorter way to initialize variables in a Rust struct?

...default. You could define a new type that implements a default value of -1 and use that instead of i64 in your struct. (I haven't tested that, but it should work). However, I'd suggest to slightly change your data structure and use Option<i64> instead of i64. I don't know the context of your ...
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Difference between no-cache and must-revalidate

...st-Modified, the agent has nothing to use to validate what it has in cache and must download the whole payload again. So when the RFC says "revalidate" that probably means, re-fetch. – Luke Puplett Nov 13 '13 at 11:55 ...
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how do you filter pandas dataframes by multiple columns

... filter a dataframe (df) by a single column, if we consider data with male and females we might: 6 Answers ...
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Declaring an enum within a class

...is declared within the Car class in order to limit the scope of the enum and to try not to "pollute" the global namespace. ...