posix_getgid

(PHP 4, PHP 5, PHP 7, PHP 8)

posix_getgid — Return the real group ID of the current process

说明

posix_getgid(): int

Return the numeric real group ID of the current process.

参数

此函数没有参数。

返回值

Returns the real group id, as an int.

示例

示例 #1 posix_getgid() example

This example will print out the real group id, even once the effective group id has been 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