posix_setegid

(PHP 4 >= 4.0.2, PHP 5)

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.

Parameters

gid

The group id.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example 1. posix_setegid() example

This example will print out your effective group id, once you change it.

#!/usr/local/bin/php
<?php
echo 'My real group id is '.posix_getgid(); //20
posix_setegid(40);
echo
'My real group id is '.posix_getgid(); //20
echo 'My effective group id is '.posix_getegid(); //40
?>

See Also

posix_getgrgid() for information on how to a group id into a useable group name
posix_getgid() get real group id.
posix_setgid() change the effective group id