PHP 手册
MySQLi

mysqli::set_charset

mysqli_set_charset

(PHP 5 >= 5.0.5)

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

说明

面向对象风格

bool mysqli::set_charset ( string $charset )

过程化风格

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.

参数

link

仅以过程化样式:由 mysqli_connect()mysqli_init() 返回的链接标识。

charset

The charset to be set as default.

返回值

成功时返回 TRUE, 或者在失败时返回 FALSE.

注释

Note:

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).

Note:

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.

范例

Example #1 mysqli::set_charset() example

面向对象风格

<?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();
?>

过程化风格

<?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);
?>

以上例程会输出:

Current character set: utf8

参见


MySQLi
PHP 手册