PHP5中文手册·Set the GID of the current process -- 追寻梦想＞编程乐园＞PHP 编程

说明

bool posix_setgid ( int $gid )

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

如果成功则返回 TRUE，失败则返回 FALSE。

范例

Example#1 posix_setgid() example

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


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

参见

posix_getgrgid() for information on how to convert this into a useable group name
posix_getgid() get real group id.


	PHP5中文手册 posix_seteuid posix_setpgid POSIX PHP Manual posix_setgid (PHP 4, PHP 5) posix_setgid — Set the GID of the current process 说明 bool posix_setgid ( int `$gid` ) 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. 返回值如果成功则返回 `TRUE`，失败则返回 `FALSE`。范例 Example#1 posix_setgid() example This example will print out the effective group id, once it is changed. `<?php echo 'My real group id is '.posix_getgid(); //20 posix_setgid(40); echo 'My real group id is '.posix_getgid(); //40 echo 'My effective group id is '.posix_getegid(); //40 ?>` 参见 posix_getgrgid() for information on how to convert this into a useable group name posix_getgid() get real group id. posix_seteuid posix_setpgid POSIX PHP Manual