phpman > perldoc > times(3)

    times   Returns a four-element list giving the user and system times in
            seconds for this process and any exited children of this
            process.

                my ($user,$system,$cuser,$csystem) = times;

            In scalar context, "times" returns $user.

            Children's times are only included for terminated children.

            Portability issues: "times" in perlport.