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# posix_setuid

(3.0.13 - 3.0.18 only, PHP 4 >= 4.0.0)

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 and you need appropriate privileges (usually root) on your system to be able to perform this function.

Returns `TRUE` on success, `FALSE` otherwise. See also posix_setgid().

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