SQL & PL/SQL :: Revised Procedure Pass_ref_cur So That It Can Accept Multiple Columns?

i was asked to built a report file that will run from oracle form using web. show_document() built-in object to produce a data extract. the objective is to built a dynamic SQL and use that to a cursor.

CREATE OR REPLACE PROCEDURE pass_ref_cur(p_cursor SYS_REFCURSOR) IS
TYPE array_t IS TABLE OF VARCHAR2(4000)
INDEX BY BINARY_INTEGER;
rec_array array_t;
BEGIN
FETCH p_cursor BULK COLLECT INTO rec_array;
FOR i IN rec_array.FIRST .. rec_array.LAST
LOOP
dbms_output.put_line(rec_array(i));
END LOOP;
END pass_ref_cur;
[code]....

I found out that the procedure can only accepts a single column. When I run this code it works fine because I am using a single column on the SQL statement.

DECLARE
rec_array SYS_REFCURSOR;
BEGIN
open rec_array For 'select p.muni from chips.project p, chips.proj_type pt where p.type = pt.id';
pass_ref_cur(rec_array);
CLOSE rec_array;
END;

The objective is to use a multiple column. How can I revised the procedure pass_ref_cur so that it can accept multiple columns?