Return info about a group by group id

说明

array posix_getgrgid ( int $gid )

Gets information about a group provided its id.

参数

gid: The group id.

返回值

The array elements returned are:

**The group information array**
Element	Description
name	The name element contains the name of the group. This is a short, usually less than 16 character "handle" of the group, not the real, full name.
passwd	The passwd element contains the group's password in an encrypted format. Often, for example on a system employing "shadow" passwords, an asterisk is returned instead.
gid	Group ID, should be the same as the `gid` parameter used when calling the function, and hence redundant.
members	This consists of an array of string's for all the members in the group.

更新日志

版本	说明
4.2.0	Prior to this version, members was simply an integer representing the number of members in the group, and the member names were returned with numerical indices.

范例

Example #1 Example use of posix_getgrgid()


<?php

$groupid   = posix_getegid();
$groupinfo = posix_getgrgid($groupid);

print_r($groupinfo);
?>

上例的输出类似于：

Array
(
    [name]    => toons
    [passwd]  => x
    [members] => Array
        (
            [0] => tom
            [1] => jerry
        )
    [gid]     => 42
)

参见

posix_getegid() - Return the effective group ID of the current process
posix_getgrnam() - Return info about a group by name
filegroup() - 取得文件的组
stat() - 给出文件的信息
safe_mode_gid
POSIX man page GETGRNAM(3)