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.

范例

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

posix_getgrgid() - Return info about a group by group id
posix_getegid() - Return the effective group ID of the current process
posix_setgid() - Set the GID of the current process
POSIX man page GETGID(2)

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User Contributed Notes 1 note

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vector from ionisis.com ¶

10 years ago


i came across this error:

Call to undefined function posix_getuid()


which was solved by these commands:

yum -y install php-process

service httpd restart

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