posix_getgrgid
(PHP 4, PHP 5)
posix_getgrgid — 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:
| 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 )
