   #PHP Manual POSIX functions posix_mkfifo posix_seteuid

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                                 posix_setegid

   (PHP 4 >= 4.0.2)
   posix_setegid --  Set the effective GID of the current process

Description

   bool posix_setegid ( int gid)

   Set the effective group 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.
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