my @quantity = param('quantity');
my $item_number = param("item_number");
#my @item_number = param("item_number");Not used until I understand how to pass one array in first. 

    my $quantity = $dbh->quote( $quantity );
    my $item_number = $dbh->quote( $item_number );

    foreach $quantity (@quantity ) {     
    
    my $sql = qq/
    INSERT INTO needed_details (quantity, item_number) VALUES ($quantity, $item_number)
     /; 
    my $rv = $dbh->do( $sql );   
    }