hi i need to store the weird character in my database but when i am trying to do so the weird character is replace with unknown character. i am giving you one example when i am try to enter in Sönke Wortmann in database it is stored as Sönke Wortmann. i want to store above text as same as it was.please tell me how can i do so
You should use Unicode tables as well as a Unicode connection to your database.
Assuming you use MySQL:
Set the default character set of your table to utf8 and make sure the connection to your database is also using this character set:
$conn = mysql_connect($server, $username, $password);
mysql_set_charset("UTF8", $conn);
See also: http://nl3.php.net/manual/en/function.mysql-set-charset.php
Check the character set of your current connection with:
echo mysql_client_encoding($conn);
See also: http://nl3.php.net/manual/en/function.mysql-client-encoding.php
When creating your tables do something like this:
create table tableName (
// Your table definition
) default charset = UTF8
If you have done these things and add weird characters to your table, you will see it is displayed correct.
Related
I've got a login screen that checks entered username and password against a MySQL database.
My problem is that it doesn't recognize Swedish characters like "ÅÄÖ".
For example, the password "lösenord" is in the database but it isn't accepted, however "losenord" is.
The database has "utf8_general_ci" connection collation and I've set the charset to UTF-8 in my index.html but not in my php scripts.
I've read what feels like a million different ways to solve UTF 8 issues like this but I can't get it to work.
If someone could at least point me in the right direction I would be very thankful.
Do I need to encode each mysql query, set some META tag?
Cheers
Try using SET NAMES 'UTF8' after connecting to MySQL:
$con=mysqli_connect("host", "user", "pw", "db");
if (!$con)
{
die('Failed to connect to mySQL: ' .mysqli_connect_errno());
}
/* change character set to utf8 */
if (!$con->set_charset("utf8")) {
printf("Error loading character set utf8: %s\n", $con->error);
}
As the manual says:
SET NAMES indicates what character set the client will use to send SQL
statements to the server... It also specifies the character set that the server should
use for sending results back to the client.
Also use utf8_swedish_ci in your table, otherwise string comparison will go wrong and MySQL will treat 'ö' and 'o' as the same character.
I am trying to convert a string from HTML-ENTITIES to UTF-8 and then save the encoded string in my database. The html entities are greek letters and look for example like this: νω
Now I tried thousands of different ways, starting from just using utf8_encode or html_entity_decode until now I came across the function mb_convert_encoding().
Now the really weird thing is that when converting my string and then outputting it, it is correctly encoded to utf-8, but when inserting this string into my database I end up getting something like: ξÏνω.
This is the code for the encoding:
header('Content-Type: text/html; charset=utf-8');
mb_internal_encoding('utf-8');
......
while($arr = $select->fetch_array(MYSQLI_ASSOC))
{
$text = $arr["greek"];
$result = mb_convert_encoding($text, 'UTF-8', 'HTML-ENTITIES');
$mysqli->query("UPDATE some SET greek = '".$result."'");
}
When outputting my query and then manually doing a sql query in phpmyadmin it works fine, so it doesnt seem to be a problem of my db. There must be some problem when transferring the encoded string to my database...
As you see in your script, you are instructing the browser to use UTF8. That is the first step.
However your database needs the same thing and also the encoding/collation on the tables need to be UTF8 too.
You can either recreate your tables using utf8_general_ci or utf8_unicode_ci as the collation, or convert the existing tables (see here)
You need to also make sure that your database connection i.e. php code to mysql is using UTF8. If you are using PDO there are plenty of articles that show how to do that. The simplest way is to do:
$mysqli->query('SET NAMES utf8');
NOTE The change you will make now is final. If you change the connection encoding to your database, you could affect existing data.
EDIT You can do the following to set the connection
$mysqli = new mysqli($host, $user, $pass, $db);
if (!$mysqli->set_charset("utf8")) {
die("Error loading character set utf8: %s\n", $mysqli->error);
}
$mysqli->close();
Links of interest:
Whether to use "SET NAMES"
Execute the SET NAMES 'utf8' query prior to any others.
I have a table in MySQL 5.0, which I put city names in it in Persian and using a page I try to read a specific city name!
It used to word, but suddenly from today, the city names in my page are all '?????' like!
I go to the phpMyAdmin, change all the collation settings to "utf_persian_ci" and nothing happens!
The interesting part of it is that the "Browse" option of phpMyAdmin shows everything ok (all city names are ok!) but when I try to get them using this kind of query from a page the thing happens:
$result = dbquery("SELECT * FROM ".DB_CITIES." WHERE cty_company_id = ".$_GET['cmp']." AND EXISTS (SELECT cu_cmp_id FROM ".DB_COMPANY_USERS." WHERE cu_cmp_id = ".$_GET['cmp']." AND cu_usr_id = $user_id) AND EXISTS (SELECT ctus_user_id FROM scada_city_users WHERE ctus_user_id = $user_id AND ctus_city_id = cty_id)");
Thanks in advance!
There is a simple way to tell the database it should deliver UTF-8 encoded strings. Just tell your connection object, which character-set you expect, the database does the rest for you.
$db = new mysqli($dbHost, $dbUser, $dbPw, $dbName);
// tell the db to deliver UTF-8 encoded strings.
$db->set_charset("utf8");
The collation only defines how two entries should be compared, it's not the same as defining the charset. Your HTML page shoud also be UTF-8 encoded, some more informations you can find here here.
I have set up a table in phpMyAdmin. I haven't changed the charsets or anything. I inserted a text in a new row, and when I try to SELECT that row and output it with PHP, the letters ÆØÅ are displayed as ���, however if I try to edit the field in phpMyAdmin, the letters are displayed correctly. What do I do wrong that phpMyAdmin does correctly?
If your PHP file is already UTF-8 encoded, you should tell your database, that you need UTF-8. Instead of fiddling with the configurations of MySQL, just tell your connection object, which character-set you expect, the database does the rest for you.
This is an example for a mysqli connection object:
$db = new mysqli($dbHost, $dbUser, $dbPw, $dbName);
$db->set_charset("utf8");
Afterwards your queries will return UTF-8 encoded results.
SET NAMES 'charset_name'
http://dev.mysql.com/doc/refman/5.0/en/charset-connection.html
First you will want to determine if it is the browser charset that is wrong, or mysql.
Try swapping the charset in your browser to utf8 or if it is already to iso-8859.
If that doesn't fix it try changing the charset in your query by doing
SET CHARACTER SET charsetname;
I have a MySQL db, i've set collation = utf8_unicode_ci.
I'm trying to fetch the value through PHP but i'm getting "???" instead of the actual string.
I have read about this subject and tried using mb_convert_encoding but it didn't work, what am I missing?
Can someone please post a code snippet that actually pulls a value from a DB and echos the string to the screen?
Thanks,
I have a MySQL db, i've set collation = utf8_unicode_ci.
I'm trying to fetch the value through PHP but i'm getting "???" instead of the actual string.
Character sets are how characters are encoded.
Collations are how characters are sorted.
These are different things. Chances are that your tables or columns have the right collation, but the wrong character set. The Internationalization section of the MySQL manual has a great deal of information on how to set things up correctly.
Can someone please post a code snippet that actually pulls a value from a DB and echos the string to the screen?
Let's demonstrate how to use utf8 as a character set, and the utf8 "general case insensitive" collation. I'm using PDO in this example, but the same general idea should work with mysqli as well. I wouldn't advise using the old mysql extension.
// Let's tell MySQL we're going to be working with utf8 data.
// http://dev.mysql.com/doc/refman/5.1/en/charset-connection.html
$db->query("SET NAMES 'utf8'");
// Create a table with our proper charset and collation.
// If we needed to, we could specify the charset and collation with
// each column.
// http://dev.mysql.com/doc/refman/5.1/en/charset-column.html
// We could also set the defaults at the database level.
// http://dev.mysql.com/doc/refman/5.1/en/charset-database.html
$db->query('
CREATE TABLE foo(
bar TEXT
)
DEFAULT CHARACTER SET utf8
DEFAULT COLLATE utf8_general_ci
ENGINE=InnoDB
');
// I don't know Arabic, so I'll type this in English. It should
// work fine in Arabic, as long as the string is encoded as utf8.
$sth = $db->prepare("INSERT INTO foo(bar) VALUES(?)");
$sth->execute(array("Hello, world!"));
$sth = $db->query("SELECT bar FROM foo LIMIT 1");
$row = $sth->fetch(PDO::FETCH_NUM);
echo $row[0]; // Will echo "Hello, world!", or whatever you inserted.
#tomp's comment below is correct. Make sure to emit a proper character set with your content type header. For example:
header('Content-type: text/html; charset=utf-8'); // Note the dash!