posix_setegid

(PHP 4 >= 4.0.2, PHP 5, PHP 7)

posix_setegid — Set the effective GID of the current process

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posix_setegid ( int $gid ) : bool

Set the effective 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.

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gid

The group id.

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Example #1 posix_setegid() example

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

<?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
?>

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