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# posix_setuid

(PHP 3>= 3.0.13, 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 and you need appropriate privileges (usually root) on your system to be able to perform this function.

成功回傳`TRUE`失敗回傳`FALSE`。

See also posix_setgid().

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