Php/docs/function.posix-setuid

• PHP Manual
• POSIX 函数
• Set the UID of the current process

posix_setuid

(PHP 4, PHP 5, PHP 7)

posix_setuid — Set the UID of the current process

说明

posix_setuid ( int $uid ) : bool

Set the real user ID of the current process. This is a privileged function that needs appropriate privileges (usually root) on the system to be able to perform this function.

参数

uid

The user id.

返回值

成功时返回 true， 或者在失败时返回 false。

范例

Example #1 posix_setuid() example

This example will show the current user id and then set it to a different value.

<?phpecho posix_getuid()."\n"; //10001echo posix_geteuid()."\n"; //10001posix_setuid(10000);echo posix_getuid()."\n"; //10000echo posix_geteuid()."\n"; //10000?>

参见

• posix_setgid() - Set the GID of the current process
• posix_seteuid() - Set the effective UID of the current process
• posix_getuid() - Return the real user ID of the current process
• posix_geteuid() - Return the effective user ID of the current process