Php/docs/function.posix-setegid

• PHP Manual
• POSIX 函数
• Set the effective GID of the current process

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.

<?phpecho 'My real group id is '.posix_getgid(); //20posix_setegid(40);echo 'My real group id is '.posix_getgid(); //20echo '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