MysqlndUhConnection::changeUser

(PECL mysqlnd-uh >= 1.0.0-alpha)

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

说明

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

参数

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.

返回值

Returns TRUE on success. Otherwise, returns FALSE

范例

Example #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"));
?>

以上例程会输出：

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

参见

mysqlnd_uh_set_connection_proxy() - Installs a proxy for mysqlnd connections
mysqli_change_user() - Changes the user of the specified database connection

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