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How do I write JSON data to a file?

... To get utf8-encoded file as opposed to ascii-encoded in the accepted answer for Python 2 use: import io, json with io.open('data.txt', 'w', encoding='utf-8') as f: f.write(json.dumps(data, ensure_ascii=False)) The code is simpl...
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Is there a good reason I see VARCHAR(255) used so often (as opposed to another length)?

... @CharlesBretana: By "fake UTF-8" I mean MySQL's "utf8" encoding, which as I mentioned reserves (and is limited to) 3 bytes per character. This isn't a very good version of UTF-8; if you want decent UTF-8 in MySQL, you have to use its "utf8mb4" encoding. But people are muc...
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What does collation mean?

...all letters to be different (say, if you store filenames in UNIX), you use UTF8_BIN collation: SELECT 'A' COLLATE UTF8_BIN = 'a' COLLATE UTF8_BIN --- 0 If you want to ignore case and diacritics differences (say, for a search engine), you use UTF8_GENERAL_CI collation: SELECT 'A' COLLATE UTF8_...
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Why is MySQL's default collation latin1_swedish_ci?

...when other options seem much more reasonable, like latin1_general_ci or utf8_general_ci ? 2 Answers ...
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Why does modern Perl avoid UTF-8 by default?

...oth these lines, not just one of them. Note however that under v5.14, the utf8 warning class comprises three other subwarnings which can all be separately enabled: nonchar, surrogate, and non_unicode. These you may wish to exert greater control over. use warnings; use warnings qw( FATAL utf8 ); D...
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PHP: Convert any string to UTF-8 without knowing the original character set, or at least try

... This seems to be working for me. My users were submitting text on a utf8 page with tinymce, yet for some unknown reason non utf8 characters sometimes ended up in the database. This fixed it, so thank you very much. – giorgio79 Oct 13 '12 at 14:27 ...
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Converting Stream to String and back…what are we missing?

... a UTF8 MemoryStream to String conversion: var res = Encoding.UTF8.GetString(stream.GetBuffer(), 0 , (int)stream.Length) share | ...
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Changing default encoding of Python?

...exist, here! reload(sys) # Reload does the trick! sys.setdefaultencoding('UTF8') (Note for Python 3.4+: reload() is in the importlib library.) This is not a safe thing to do, though: this is obviously a hack, since sys.setdefaultencoding() is purposely removed from sys when Python starts. Reenab...
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How to find the array index with a value?

... edited Jun 24 '19 at 15:08 vba_user111 20911 silver badge1313 bronze badges answered Sep 8 '11 at 10:49 v...
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Objective-C and Swift URL encoding

...d, NULL, CFSTR("!*'();:@&=+$,/?%#[]\" "), kCFStringEncodingUTF8)); Using Core Foundation Without ARC: NSString *escapedString = (NSString *)CFURLCreateStringByAddingPercentEscapes( NULL, (CFStringRef)unescaped, NULL, CFSTR("!*'();:@&=+$,/?%#[]\" "), kCFStr...