Re: Hash reference

is xyz your key? or is it x, then y, then z?

Have you tried:

$w = "xyz";
&myfunc($a_ref->{$w});
[download]

Comment on Re: Hash reference Download Code

Replies are listed 'Best First'.
Re^2: Hash reference by koknat (Sexton) on Jun 03, 2005 at 23:27 UTC
Thanks very much. That worked. I didn't think the braces were needed, but they make all the difference. `&myfunc($a_ref->$w); # BAD &myfunc($a_ref->{$w}); # GOOD` [download] Yes, "xyz" was the key.	[reply] [d/l]
Re^3: Hash reference by monarch (Priest) on Jun 04, 2005 at 00:40 UTC
The braces are indeed important because you're providing a key, and expecting a value. The value is actually a reference! When you don't provide the braces you are no longer passing a key and expecting a value. Instead you're trying to call a function! That's why you get the error message, can't call method on unblessed reference.. because you have a hash, not an object.	[reply]