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.

范例

Example #1 Example use of posix_getgrgid()


<?php

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

print_r($groupinfo);
?>

以上例程的输出类似于：

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)