some_function(some_variable, 
              some_other_variable, 
              and_yet_another_variable,
              and_one_more_for, 
              luck);

##</code><code>##

some_function( filename  => $some_variable,
               address   => $some_other_variable,
               amount    => $and_yet_another_variable,
               phone_num => $and_one_more_for, 
               diameter  => $luck );