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PHP : Function Reference : POSIX Functions : posix_setgid

posix_setgid

Set the GID of the current process (PHP 4, PHP 5)
bool posix_setgid ( int gid )

Set the real group ID of the current process. This is a privileged function and needs appropriate privileges (usually root) on the system to be able to perform this function. The appropriate order of function calls is posix_setgid() first, posix_setuid() last.

Note:

If the caller is a super user, this will also set the effective group id.

Parameters

gid

The group id.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 1885. posix_setgid() example

This example will print out the effective group id, once it is changed.

<?php
echo 'My real group id is '.posix_getgid(); //20
posix_setgid(40);
echo
'My real group id is '.posix_getgid(); //40
echo 'My effective group id is '.posix_getegid(); //40
?>


See Also
posix_getgrgid() for information on how to convert this into a useable group name
posix_getgid() get real group id.

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posix_access
posix_ctermid
posix_get_last_error
posix_getcwd
posix_getegid
posix_geteuid
posix_getgid
posix_getgrgid
posix_getgrnam
posix_getgroups
posix_getlogin
posix_getpgid
posix_getpgrp
posix_getpid
posix_getppid
posix_getpwnam
posix_getpwuid
posix_getrlimit
posix_getsid
posix_getuid
posix_initgroups
posix_isatty
posix_kill
posix_mkfifo
posix_mknod
posix_setegid
posix_seteuid
posix_setgid
posix_setpgid
posix_setsid
posix_setuid
posix_strerror
posix_times
posix_ttyname
posix_uname
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