# posix_seteuid

(PHP 4 >= 4.0.2, PHP 5, PHP 7)

posix_seteuid — Set the effective UID of the current process

### 说明

posix_seteuid ( int `$uid` ) : bool

Set the effective user ID of the current process. This is a privileged function and needs appropriate privileges (usually root) on the system to be able to perform this function.

### 参数

`uid`

  The user id.

### 返回值

成功时返回 `TRUE`， 或者在失败时返回 `FALSE`。

### 参见

- posix_geteuid() - Return the effective user ID of the current process
- posix_setuid() - Set the UID of the current process
- posix_getuid() - Return the real user ID of the current process