PHP 7.0.7 Released

mysqli::set_charset

mysqli_set_charset

(PHP 5 >= 5.0.5, PHP 7)

mysqli::set_charset -- mysqli_set_charsetSets the default client character set

Beschreibung

Objektorientierter Stil

bool mysqli::set_charset ( string $charset )

Prozeduraler Stil

bool mysqli_set_charset ( mysqli $link , string $charset )

Sets the default character set to be used when sending data from and to the database server.

Parameter-Liste

link

Nur bei prozeduralem Aufruf: Ein von mysqli_connect() oder mysqli_init() zurückgegebenes Verbindungsobjekt.

charset

The charset to be set as default.

Rückgabewerte

Gibt bei Erfolg TRUE zurück. Im Fehlerfall wird FALSE zurückgegeben.

Anmerkungen

Hinweis:

To use this function on a Windows platform you need MySQL client library version 4.1.11 or above (for MySQL 5.0 you need 5.0.6 or above).

Hinweis:

This is the preferred way to change the charset. Using mysqli_query() to set it (such as SET NAMES utf8) is not recommended. See the MySQL character set concepts section for more information.

Beispiele

Beispiel #1 mysqli::set_charset() example

Objektorientierter Stil

<?php
$mysqli 
= new mysqli("localhost""my_user""my_password""test");

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

printf("Initial character set: %s\n"$mysqli->character_set_name());

/* change character set to utf8 */
if (!$mysqli->set_charset("utf8")) {
    
printf("Error loading character set utf8: %s\n"$mysqli->error);
    exit();
} else {
    
printf("Current character set: %s\n"$mysqli->character_set_name());
}

$mysqli->close();
?>

Prozeduraler Stil

<?php
$link 
mysqli_connect('localhost''my_user''my_password''test');

/* check connection */
if (mysqli_connect_errno()) {
    
printf("Connect failed: %s\n"mysqli_connect_error());
    exit();
}

printf("Initial character set: %s\n"mysqli_character_set_name($link));

/* change character set to utf8 */
if (!mysqli_set_charset($link"utf8")) {
    
printf("Error loading character set utf8: %s\n"mysqli_error($link));
    exit();
} else {
    
printf("Current character set: %s\n"mysqli_character_set_name($link));
}

mysqli_close($link);
?>

Oben gezeigte Beispiele erzeugen eine ähnliche Ausgabe wie:

Initial character set: latin1
Current character set: utf8

Siehe auch

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User Contributed Notes 2 notes

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1
coder at punkass dot com
10 years ago
On windows, with "stock" PHP 5.1.2, there is no set_charset function at all. One may have to replace php_mysqli.dll, and libmysql.dll with proper versions, which provided by MySQL at http://dev.mysql.com/downloads/connector/php/
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0
Emmanuel Appiah
2 months ago
So in my case, I had tried changing the collation from utf8mb4_unicode_ci for mysql and had to change it to uft8_general_ci.

Then pasted :

mysqli_set_charset( $con, 'utf8');

right before I did the SELECT command.

This is my code for reading from db :

/*

$DB_SERVER="db_server_name";
$DB_USER_READER="root";
$DB_PASS_READER="passw*rd";
$DB_NAME="db_name";
$DB_PORT="port number";

$SELECT_WHAT="`name_of_column_as_in_your_table`";
$WHICH_TBL="`table_name`";
$ON_WHAT_CONDITION="`id`='7'";

*/

$con = mysqli_connect($DB_SERVER, $DB_USER_READER, $DB_PASS_READER, $DB_NAME, $DB_PORT);//this is the unique connection for the selection
   
    mysqli_set_charset( $con, 'utf8');
   
       
        $slct_stmnt = "SELECT ".$SELECT_WHAT." FROM ".$WHICH_TBL." WHERE ".$ON_WHAT_CONDITION;

    $slct_query = mysqli_query($con, $slct_stmnt);
   
        if ($slct_query==true) {
//Do your stuff here . . .
}

And it worked like a charm. All the best. The above code can work with reading chineese, russian or arabic or any international language from the database's table column holding such data.
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