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<posix_getgrnamposix_getlogin>
^POSIX FunctionsLast updated: Mon, 26 Oct 2026

posix_getgroups

(PHP 4, PHP 5, PHP 7, PHP 8)

posix_getgroups — Return the group set of the current process

Description

function posix_getgroups(): array|false

Gets the group set of the current process.

Parameters

This function has no parameters.

Return Values

Returns an array of integers containing the numeric group ids of the group set of the current process, or false on failure.

Examples

Example #1 Example use of posix_getgroups()

<?php

$groups = posix_getgroups();

print_r($groups);
?>

The above example will output something similar to:

Array
(
    [0] => 4
    [1] => 20
    [2] => 24
    [3] => 25
    [4] => 29
    [5] => 30
    [6] => 33
    [7] => 44
    [8] => 46
    [9] => 104
    [10] => 109
    [11] => 110
    [12] => 1000
)

See Also


<posix_getgrnamposix_getlogin>
^POSIX FunctionsLast updated: Mon, 26 Oct 2026