posix_setegid()

(PHP 4 >= 4.0.2, PHP 5, PHP 7)

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

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