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mysqli::get_charset

mysqli_get_charset

(PHP 5 >= 5.1.0, PHP 7, PHP 8)

mysqli::get_charset -- mysqli_get_charset — Returns a character set object

说明

面向对象风格

public mysqli::get_charset(): ?object

过程化风格

mysqli_get_charset(mysqli $mysql): ?object

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

参数

mysql

仅以过程化样式：由 mysqli_connect() 或 mysqli_init() 返回的 mysqli 对象。

返回值

The function returns a character set object with the following properties:

charset

Character set name

collation

Collation name

dir

Directory the character set 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

As of PHP 8.2.0, it is always 1

示例

示例 #1 mysqli::get_charset() example

面向对象风格

<?php
$db = mysqli_init();
$db->real_connect("localhost","root","","test");
$db->set_charset('latin1');
var_dump($db->get_charset());
?>

过程化风格

<?php
$db = mysqli_init();
mysqli_real_connect($db, "localhost","root","","test");
mysqli_set_charset($db, 'latin1');
var_dump(mysqli_get_charset($db));
?>

以上示例会输出：

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(1)
}

参见