posix_setuid(3) [php man page]

POSIX_SETUID(3) 							 1							   POSIX_SETUID(3)

posix_setuid - Set the UID of the current process

SYNOPSIS

       bool posix_setuid (int  $uid)

DESCRIPTION

	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.

PARAMETERS

	      o $uid
		- The user id.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

EXAMPLES

       Example #1

	      posix_setuid(3) example

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

	      <?php
	      echo posix_getuid()."
"; //10001
	      echo posix_geteuid()."
"; //10001
	      posix_setuid(10000);
	      echo posix_getuid()."
"; //10000
	      echo posix_geteuid()."
"; //10000
	      ?>

SEE ALSO

       posix_setgid(3), posix_seteuid(3), posix_getuid(3), posix_geteuid(3).

PHP Documentation Group 													   POSIX_SETUID(3)

POSIX_GETEUID(3)							 1							  POSIX_GETEUID(3)

posix_geteuid - Return the effective user ID of the current process

SYNOPSIS

       int posix_geteuid (void	)

DESCRIPTION

	Return the numeric effective user ID of the current process. See also posix_getpwuid(3) for information on how to convert this into a use-
       able username.

RETURN VALUES

	Returns the user id, as an integer

EXAMPLES

       Example #1

	      posix_geteuid(3) example

	      This example will show the current user id then set the effective user id to a separate id using	posix_seteuid(3),  then  show  the
	      difference between the real id and the effective id.

	      <?php
	      echo posix_getuid()."
"; //10001
	      echo posix_geteuid()."
"; //10001
	      posix_seteuid(10000);
	      echo posix_getuid()."
"; //10001
	      echo posix_geteuid()."
"; //10000
	      ?>

SEE ALSO

       posix_getpwuid(3), posix_getuid(3), posix_setuid(3), POSIX man page GETEUID(2).

PHP Documentation Group 													  POSIX_GETEUID(3)