   #PHP Manual POSIX functions posix_setsid posix_strerror

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                                 posix_setuid

   (PHP 3>= 3.0.13, PHP 4 )
   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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