posix_geteuid
(PHP 4, PHP 5, PHP 7, PHP 8)
posix_geteuid — Return the effective user ID of the current process
說明
posix_geteuid(): int
Return the numeric effective user ID of the current process. See also posix_getpwuid() for information on how to convert this into a useable username.
參數
此函式沒有參數。
返回值
Returns the user id, as an int
範例
示例 #1 posix_geteuid() example
This example will show the current user id then set the effective user id to a separate id using posix_seteuid(), then show the difference between the real id and the effective id.
<?php
echo posix_getuid()."\n"; //10001
echo posix_geteuid()."\n"; //10001
posix_seteuid(10000);
echo posix_getuid()."\n"; //10001
echo posix_geteuid()."\n"; //10000
?>
參見
- posix_getpwuid() - Return info about a user by user id
- posix_getuid() - Return the real user ID of the current process
- posix_setuid() - Set the UID of the current process
- POSIX man page GETEUID(2)