MySQL and PHP
Copyright 1997-2021 the PHP Documentation Group.
mysqli::set_charset
mysqli_set_charset
Sets the default client character set
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.
link
Procedural style only: A link identifier returned by
mysqli_connect
or
mysqli_init
charset
The charset to be set as default.
Returns true
on success or
false
on failure.
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.
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
mysqli_character_set_name
|
mysqli_real_escape_string
|
MySQL character set concepts |
List of character sets that MySQL supports |