mysqli::get_charset()

(PHP 5 >= 5.1.0, PHP 7)

Returns a character set object

说明

面向对象风格
mysqli::get_charset(void): object

过程化风格
mysqli_get_charset(mysqli$link): object

Returns a character set object providing several properties of the current active character set.

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 function returns a character set object with the following properties:

$charset

Character set name

$collation

Collation name

$dir

Directory the charset description was fetched from(?)or "" for built-in character sets

$min_length

Minimum character length in bytes

$max_length

Maximum character length in bytes

$number

Internal character set number

$state

Character set status(?)

范例

Example #1 mysqli::get_charset() example

面向对象风格

<?php
  $db = mysqli_init();
  $db->real_connect("localhost","root","","test");
  var_dump($db->get_charset());
?>

过程化风格

<?php
  $db = mysqli_init();
  mysqli_real_connect($db, "localhost","root","","test");
  var_dump(mysqli_get_charset($db));
?>

以上例程会输出：

object(stdClass)#2 (7) {
  ["charset"]=>
  string(6) "latin1"
  ["collation"]=>
  string(17) "latin1_swedish_ci"
  ["dir"]=>
  string(0) ""
  ["min_length"]=>
  int(1)
  ["max_length"]=>
  int(1)
  ["number"]=>
  int(8)
  ["state"]=>
  int(801)
}

参见

• mysqli_character_set_name() 返回当前数据库连接的默认字符编码
• mysqli_set_charset() 设置默认字符编码