Php/docs/function.posix-setgid

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posix_setgid

(PHP 4, PHP 5, PHP 7)

posix_setgidSet the GID of the current process


说明

posix_setgid ( int $gid ) : bool

Set the real 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. The appropriate order of function calls is posix_setgid() first, posix_setuid() last.

Note:

If the caller is a super user, this will also set the effective group id.

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_setgid() example

This example will print out the effective group id, once it is changed.


<?phpecho 'My real group id is '.posix_getgid(); //20posix_setgid(40);echo 'My real group id is '.posix_getgid(); //40echo 'My effective group id is '.posix_getegid(); //40?>

参见