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PHP PDO: charset, set names?
...e it in your connection string like:
"mysql:host=$host;dbname=$db;charset=utf8"
HOWEVER, prior to PHP 5.3.6, the charset option was ignored. If you're running an older version of PHP, you must do it like this:
$dbh = new PDO("mysql:$connstr", $user, $password);
$dbh->exec("set names utf8");
...
Converting string to byte array in C#
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@AndiAR try Encoding.UTF8.GetBytes(somestring)
– OzBob
Dec 5 '16 at 4:24
1
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Use of 'use utf8;' gives me 'Wide character in print'
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Without use utf8 Perl interprets your string as a sequence of single byte characters. There are four bytes in your string as you can see from this:
$ perl -E 'say join ":", map { ord } split //, "鸡\n";'
233:184:161:10
The first thre...
Serializing an object as UTF-8 XML in .NET
...();
var streamWriter = new StreamWriter(memoryStream, System.Text.Encoding.UTF8);
serializer.Serialize(streamWriter, entry);
byte[] utf8EncodedXml = memoryStream.ToArray();
I've left out the same disposal you've left. I slightly favour the following (with normal disposal left in):
var serialize...
Determine a string's encoding in C#
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Check out Utf8Checker it is simple class that does exactly this in pure managed code.
http://utf8checker.codeplex.com
Notice: as already pointed out "determine encoding" makes sense only for byte streams. If you have a string it is al...
推荐系统算法初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...有一个用户和一条新闻。通过分析用户的行为以及新闻的文本内容，我们提取出数个关键字，如下图：
将这些关键字作为属性，把用户和新闻分解成向量，如下图：
之后再计算向量距离，便可以得出该用户和新闻的相似度了...
UTF-8 all the way through
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Data Storage:
Specify the utf8mb4 character set on all tables and text columns in your database. This makes MySQL physically store and retrieve values encoded natively in UTF-8. Note that MySQL will implicitly use utf8mb4 encoding if a utf8mb4_* col...
#1071 - Specified key was too long; max key length is 1000 bytes
...lumn2, column3, column4, column5, column6)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
UTF8 is multi-bytes, and key length is calculated in this way - 500 * 3 * 6 = 9000 bytes.
But note, next query works!
CREATE TABLE IF NOT EXISTS test_table1 (
column1 varchar(500) NOT NULL,
column2 varchar(500) ...
How do I encode and decode a base64 string?
...se64Encode(string plainText) {
var plainTextBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
return System.Convert.ToBase64String(plainTextBytes);
}
Decode
public static string Base64Decode(string base64EncodedData) {
var base64EncodedBytes = System.Convert.FromBase64String(base64Enco...
convert streamed buffers to utf8-string
... the binary contents to a string using a specific encoding. It defaults to utf8 if you don't provide a parameter, but I've explicitly set the encoding in this example.
var req = http.request(reqOptions, function(res) {
...
res.on('data', function(chunk) {
var textChunk = chunk.toSt...