posix_setuid

(PHP 4, PHP 5, PHP 7)

posix_setuid — Set the UID of the current process

˵��

posix_setuid ( int $uid ) : bool

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

����

uid

The user id.

����ֵ

�ɹ�ʱ���� TRUE�� ������ʧ��ʱ���� FALSE��

����

Example #1 posix_setuid() example

This example will show the current user id and then set it to a different value.

<?php
echo posix_getuid()."\n"; //10001
echo posix_geteuid()."\n"; //10001
posix_setuid(10000);
echo posix_getuid()."\n"; //10000
echo posix_geteuid()."\n"; //10000
?>

�μ�