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posix_setgid

(PHP 3>= 3.0.13, PHP 4 )

posix_setgid --  Set the GID of the current process

Description

bool posix_setgid ( int gid)

Set the real 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. The appropriate order of function calls is posix_setgid() first, posix_setuid() last.

Returns TRUE on success, FALSE otherwise.

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