# fbsql_change_user

(PHP 4 >= 4.0.6, PHP 5, PHP 7)

fbsql_change_user — Change logged in user of the active connection

### 说明

fbsql_change_user ( string `$user` , string `$password` [, string `$database` [, resource `$link_identifier` ]] ) : bool

fbsql_change_user() changes the logged in user of the specified connection. If the new user and password authorization fails, the current connected user stays active.

### 参数

`user`

  The new user name.

`password`

  The new user password.

`database`

  If specified, this will be the default or current database after the user has been changed.

`link_identifier`

  由 fbsql_connect() 或 fbsql_pconnect() 返回的 FrontBase 链接标识符.

  如可选并未指定，函数会尝试查找一个到 FrontBase 服务器的开放链接，且如没有找到这样的链接，会尝试通过不带参数调用 fbsql_connect() 来创建一个。

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。