Let's break it down:

push (@ {$GSPmsgHash{$date} }, @days_between);

1. $GSPmsgHash{$date}

This gives the arrayref for key $date of the hash $GSPmshHash

2. @{ $GSPmsgHash{$date} }

Now you're dereferencing the arrayref and getting the array

3. push (@ {$GSPmsgHash{$date} }, @days_between);

So now you push two the two elements from @days_between onto the array referenced by $GSPmsgHash{$date}.

So the result you're seeing is completely expected. Where were you trying to add the @days_between data?

In reply to Re: add data to HoA by Riales
in thread add data to HoA by dbs

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