posix_setegid
(PHP 4 >= 4.0.2, PHP 5, PHP 7)
posix_setegid — Set the effective GID of the current process
说明
posix_setegid (
int
$gid ) :
bool
Set the effective group ID of the current process. This is a privileged function and needs appropriate privileges (usually root) on the system to be able to perform this function.
参数
-
gid -
The group id.
返回值
成功时返回 TRUE， 或者在失败时返回 FALSE。
范例
Example #1 posix_setegid() example
This example will print out the effective group id, once 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() - Return info about a group by group id
- posix_getgid() - Return the real group ID of the current process
- posix_setgid() - Set the GID of the current process
