MysqlndUhConnection
MysqlndUhConnection::charsetName
MysqlndUhConnection
PHP Manual

# MysqlndUhConnection::changeUser

(PECL mysqlnd-uh >= 1.0.0-alpha)

MysqlndUhConnection::changeUser — Changes the user of the specified mysqlnd database connection

### 説明

public bool MysqlndUhConnection::changeUser ( mysqlnd_connection `$connection` , string `$user` , string `$password` , string `$database` , bool `$silent` , int `$passwd_len` )

Changes the user of the specified mysqlnd database connection

### パラメータ

`connection`

  Mysqlnd connection handle. Do not modify!

`user`

  The MySQL user name.

`password`

  The MySQL password.

`database`

  The MySQL database to change to.

`silent`

  Controls if mysqlnd is allowed to emit errors or not.

`passwd_len`

  Length of the MySQL password.

### 返り値

Returns `TRUE` on success. Otherwise, returns `FALSE`

### 例

例1 MysqlndUhConnection::changeUser() example

`<?php
class proxy extends MysqlndUhConnection {
/* Hook mysqlnd's connection::change_user call */
public function changeUser($res, $user, $passwd, $db, $silent, $passwd_len) {
printf("%s(%s)\n", __METHOD__, var_export(func_get_args(), true));
$ret = parent::changeUser($res, $user, $passwd, $db, $silent, $passwd_len);
printf("%s returns %s\n", __METHOD__, var_export($ret, true));
return $ret;
}
}
/* Install proxy/hooks to be used with all future mysqlnd connection */
mysqlnd_uh_set_connection_proxy(new proxy());
/* Create mysqli connection which is using the mysqlnd library */
$mysqli = new mysqli("localhost", "root", "", "test");
/* Example of a user API call which triggers the hooked mysqlnd call */
var_dump($mysqli->change_user("root", "bar", "test"));
?>`

上の例の出力は以下となります。

    proxy::changeUser(array (
      0 => NULL,
      1 => 'root',
      2 => 'bar',
      3 => 'test',
      4 => false,
      5 => 3,
    ))
    proxy::changeUser returns false
    bool(false)

### 参考

- mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
- mysqli_change_user() - 指定されたデータベース接続のユーザー名を変更する

MysqlndUhConnection
MysqlndUhConnection::charsetName
MysqlndUhConnection
PHP Manual