问题
I'm trying to save French accents in my database, but they aren't saved like they should in the DB.
For example, a "é" is saved as "é".
I've tried to set my files to "Unicode (utf-8)", the fields in the DB are "utf8_general_ci" as well as the DB itself.
When I look at my data posted through AJAX with Firebug, I see the accent passed as "é", so it's correct.
Thanks and let me know you need more info!
回答1:
Personally I solved the same issue by adding after the MySQL connection code:
mysql_set_charset("utf8");
or for mysqli:
mysqli_set_charset($conn, "utf8");
or the mysqli OOP equivalent:
$conn->set_charset("utf8");
And sometimes you'll have to define the main php charset by adding this code:
mb_internal_encoding('UTF-8');
On the client HTML side you have to add the following header data :
<meta http-equiv="Content-type" content="text/html;charset=utf-8" />
In order to use JSON AJAX results (e.g. by using jQuery), you should define the header by adding :
header("Content-type: application/json;charset=utf8");
json_encode(
some_data
);
This should do the trick
回答2:
The best bet is that your database connection is not UTF-8 encoded - it is usually ISO-8859-1 by default.
Try sending a query
SET NAMES utf8;
after making the connection.
回答3:
mysqli_set_charset($conn, "utf8");
回答4:
if you use PDO, you must instanciate like that :
new \PDO("mysql:host=$host;dbname=$schema", $username, $password, array(\PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8') );
回答5:
Use UTF8:
Set a meta in your
<meta http-equiv="Content-type" content="text/html;charset=utf-8" />
When you connect to your mySQL DB, force encoding so you DONT have to play with your mysql settings
$conn = mysql_connect('server', 'user', 'password') or die('Could not connect to mysql server.');
mysql_select_db('mydb') or die('Could not select database.');
mysql_set_charset('utf8',$conn); //THIS IS THE IMPORTANT PART
If you use AJAX, set you encoding like this:
header('Content-type: text/html; charset=utf-8');
回答6:
Have you reviewed http://dev.mysql.com/doc/refman/5.0/en/charset-unicode.html:
Client applications that need to communicate with the server using Unicode should set the client character set accordingly; for example, by issuing a SET NAMES 'utf8' statement. ucs2 cannot be used as a client character set, which means that it does not work for SET NAMES or SET CHARACTER SET. (See Section 9.1.4, “Connection Character Sets and Collations”.)
Further to that:
if you get data via php from your mysql-db (everything utf-8) but still get '?' for some special characters in your browser (), try this:
after mysql_connect() , and mysql_select_db() add this lines: mysql_query("SET NAMES utf8");
worked for me. i tried first with the utf8_encode, but this only worked for äüöéè... and so on, but not for kyrillic and other chars.
回答7:
You need to a) make sure your tables are using a character encoding that can encode such characters (UTF-8 tends to be the go-to encoding these days) and b) make sure that your form submissions are being sent to the database in the same character encoding. You do this by saving your HTML/PHP/whatever files as UTF-8, and by including a meta tag in the head that tells the browser to use UTF-8 encoding.
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
Oh, and don't forget C, when connecting to the database, make sure you're actually using the correct character set by executing a SET NAMES charset=utf8 (might not be the correct syntax, I'll have to look up what it should be, but it will be along those lines)
回答8:
PHP(.net) advises against setting charsets after connecting using a query like SET NAMES utf8 because your functionality for escaping data inside MySQL statements might not work as intended.
Do not use SET NAMES utf8 but use the appropriate ..._set_charset() function (or method) instead, in case you are using PHP.
来源：https://stackoverflow.com/questions/4854446/save-accents-in-mysql-database