mysqli::character_set_name()

(PHP 5, PHP 7)

返回当前数据库连接的默认字符编码

说明

面向对象风格
mysqli::character_set_name(void): string

过程化风格
mysqli_character_set_name(mysqli$link): string

返回当前数据库连接的默认字符编码。

参数

$link

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

返回值

The default character set for the current connection

范例

Example #1 mysqli::character_set_name() example

面向对象风格

<?php
/* Open a connection */
$mysqli = new mysqli("localhost", "my_user", "my_password", "world");
/* check connection */
if (mysqli_connect_errno()) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
/* Print current character set */
$charset = $mysqli->character_set_name();
printf ("Current character set is %s\n", $charset);
$mysqli->close();
?>

过程化风格

<?php
/* Open a connection */
$link = mysqli_connect("localhost", "my_user", "my_password", "world");
/* check connection */
if (!$link) {
    printf("Connect failed: %s\n", mysqli_connect_error());
    exit();
}
/* Print current character set */
$charset = mysqli_character_set_name($link);
printf ("Current character set is %s\n",$charset);
/* close connection */
mysqli_close($link);
?>

以上例程会输出：

Current character set is latin1_swedish_ci

参见

• mysqli_set_charset() 设置默认字符编码
• mysqli_client_encoding()mysqli_character_set_name 的别名
• mysqli_real_escape_string() 根据当前连接的字符集，对于 SQL 语句中的特殊字符进行转义