posix_geteuid
posix_getgrgid
POSIX Functions
PHP Manual

# posix_getgid

(PHP 4, PHP 5)

posix_getgid — Return the real group ID of the current process

### Description

int posix_getgid ( void )

Return the numeric real group ID of the current process.

### Return Values

Returns the real group id, as an integer.

### Examples

Example #1 posix_getgid() example

This example will print out the real group id, even once the effective group id has been 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
?>`

### See Also

- posix_getgrgid() for information on how to convert this into a useable group name
- posix_getegid() get effective group id.
- posix_setgid() change the effective group id
- POSIX man page GETGID(2)

posix_geteuid
posix_getgrgid
POSIX Functions
PHP Manual