$VAR1 = [ [ '101', '1997-02-25', 'S1', '31.00', 'NULL', '0.00', 'this becomes two fields, so no go', '5.11' ], [ '102', '1998-03-26', 'S1', '31.00', 'NULL', '0.00', 'this will remain one field', '6.11' ] ];