posix_getgid

(PHP 4, PHP 5)

posix_getgid — Return the real group ID of the current process

说明

int posix_getgid ( void )

Return the numeric real group ID of the current process.

返回值

Returns the real group id, as an integer.

范例

Example #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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