Copyright 1997-2021 the PHP Documentation Group.
mysqli::set_charset
mysqli_set_charset
Sets the default client character set
Description
Object oriented style
public bool mysqli::set_charset(string charset);
Procedural style
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.
Parameters
-
link
Procedural style only: A link identifier returned by
mysqli_connect
ormysqli_init
-
charset
The charset to be set as default.
Return Values
Returns true
on success or
false
on failure.
Notes
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).
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.
Examples
Example 3.64 mysqli::set_charset
example
Object oriented style
<?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", $mysqli->character_set_name());
/* change character set to utf8mb4 */
if (!$mysqli->set_charset("utf8mb4")) {
printf("Error loading character set utf8mb4: %s\n", $mysqli->error);
exit();
} else {
printf("Current character set: %s\n", $mysqli->character_set_name());
}
$mysqli->close();
?>
Procedural style
<?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 utf8mb4 */
if (!mysqli_set_charset($link, "utf8mb4")) {
printf("Error loading character set utf8mb4: %s\n", mysqli_error($link));
exit();
} else {
printf("Current character set: %s\n", mysqli_character_set_name($link));
}
mysqli_close($link);
?>
The above examples will output something similar to:
Initial character set: latin1 Current character set: utf8mb4
See Also
mysqli_character_set_name
|
mysqli_real_escape_string
|
MySQL character set concepts |
List of character sets that MySQL supports |