posix_setuid

(PHP 4, PHP 5)

posix_setuid — Set the UID of the current process

Description

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.

Parameters

uid

The user id.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

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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