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posix_setuid

(PHP 4, PHP 5)

posix_setuid — Set the UID of the current process

说明

bool posix_setuid ( int $uid )

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.

参数

uid

The user id.

返回值

如果成功则返回 TRUE,失败则返回 FALSE

范例

Example#1 posix_setuid() example

This example will show the currrent 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
?>


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