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/
mysqli::set_charset
mysqli_set_charset
(PHP 5 >= 5.0.5)
mysqli::set_charset -- mysqli_set_charset — Sets the default client character set
Descrizione
Stile orientato agli oggetti
$charset
)Stile procedurale
Sets the default character set to be used when sending data from and to the database server.
Elenco dei parametri
-
link -
Solo nello stile procedurale: un identificatore restituito da mysqli_connect() o mysqli_init()
-
charset -
The charset to be set as default.
Valori restituiti
Restituisce TRUE in caso di successo, FALSE in caso di fallimento.
Note
Nota:
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).
Nota:
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.
Esempi
Example #1 mysqli::set_charset() example
Stile orientato agli oggetti
<?php
$mysqli = new mysqli("localhost", "my_user", "my_password", "test");
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* change character set to utf8 */
if (!$mysqli->set_charset("utf8")) {
printf("Error loading character set utf8: %s\n", $mysqli->error);
} else {
printf("Current character set: %s\n", $mysqli->character_set_name());
}
$mysqli->close();
?>
Stile procedurale
<?php
$link = mysqli_connect('localhost', 'my_user', 'my_password', 'test');
/* check connection */
if (mysqli_connect_errno()) {
printf("Connect failed: %s\n", mysqli_connect_error());
exit();
}
/* change character set to utf8 */
if (!mysqli_set_charset($link, "utf8")) {
printf("Error loading character set utf8: %s\n", mysqli_error($link));
} else {
printf("Current character set: %s\n", mysqli_character_set_name($link));
}
mysqli_close($link);
?>
I precedenti esempi visualizzeranno:
Current character set: utf8
Vedere anche:
- mysqli_character_set_name() - Returns the default character set for the database connection
- mysqli_real_escape_string() - Escapes special characters in a string for use in an SQL statement, taking into account the current charset of the connection
- » List of character sets that MySQL supports
