posix_getgid

(PHP 4, PHP 5)

posix_getgid — Return the real group ID of the current process

说明

int posix_getgid ( void )

Return the numeric real group ID of the current process.

返回值

Returns the real group id, as an integer.

范例

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
?>

参见

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)