posix_geteuid

(PHP 4, PHP 5)

posix_geteuid — Return the effective user ID of the current process

说明

int posix_geteuid ( void )

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.

返回值

Returns the user id, as an integer

范例

Example #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
 ?>

参见

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)