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What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon

... as the limit ... without formatting. Adding formatting may add roughly an extra character for every digit. So as a final thought it may not be a good idea to limit the phone number in the database in any way and leave shorter limits to the UX designers. ...
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Create subdomains on the fly with .htaccess (PHP)

...ches[1])) { $subdomain = $matches[1]; } I have used regex here to to allow for people hitting your site via www.subdomain.example.org or subdomain.example.org. If you never anticipate having to deal with www. (or other subdomains) then you could simply use a substring like so: $subdomain = s...
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Extracting extension from filename in Python

.../path/to/somefile' >>> file_extension '.ext' Unlike most manual string-splitting attempts, os.path.splitext will correctly treat /a/b.c/d as having no extension instead of having extension .c/d, and it will treat .bashrc as having no extension instead of having extension .bashrc: >&gt...
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What is the __DynamicallyInvokable attribute for?

...ble in DotPeek I notice that some methods are flavoured with a [__DynamicallyInvokable] attribute. 2 Answers ...
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encryption/decryption with multiple keys

..., AES-NI, to do some steps of the algorithm in hardware, which makes GnuPG extra snappy at encrypting/decrypting data. Another reason for doing it this way is that it allows PGP-encrypted documents to be encrypted to multiple parties without having to double the size of the document. Notice that w...
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Django MEDIA_URL and MEDIA_ROOT

... answer below; it is a better solution. – Thane Brimhall Apr 6 '16 at 14:14 is this in your app or project urls.py? ...
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boost::flat_map and its performance compared to map and unordered_map

...e, because your cache will not be warm, and your operation will likely be called just once. Therefore you need to benchmark using RDTSC, and time stuff calling them once only. Intel has made a paper describing how to use RDTSC (using a cpuid instruction to flush the pipeline, and calling it at least...
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Get button click inside UITableViewCell

...ce Builder (IB) in step two. Just make sure your buttons tag is set. You really don't want to mix up your action calling. Either do it through IB or do it explicitly in your code. – Sententia Apr 29 '14 at 7:12 ...
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Prevent direct access to a php include file

...eople the trouble of Googling, if you're using Apache, put this in a file called ".htaccess" in the directory you don't want to be accessible: Deny from all If you actually have full control of the server (more common these days even for little apps than when I first wrote this answer), the best ...
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PhoneGap: Detect if running on desktop browser

...he 'desktop' and mobile versions. I want to be able to detect if PhoneGap calls will work (ie, is the user on a mobile device that will support PhoneGap). ...