Re^2: Creating a hash out of multiple XML attributes in an elment

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Re^3: Creating a hash out of multiple XML attributes in an elment by mirod (Canon) on Jul 15, 2013 at 02:02 UTC
`$key2value` is a hash reference, you retrieve the value for `a` this way: `$key2value->{a}` see perldata for more info.	[reply] [d/l] [select]
Re^4: Creating a hash out of multiple XML attributes in an elment by perlvroom (Acolyte) on Jul 15, 2013 at 14:50 UTC
I had tried that at first and it does print the value, but it also prints: Use of uninitialized value $key2value{"a"} in concatenation (.) or string for each "settings" element in the xml.	[reply]
Re^5: Creating a hash out of multiple XML attributes in an elment by Jenda (Abbot) on Jul 15, 2013 at 15:03 UTC
`$key2value{"a"}` and `$key2value->{"a"}` are two different and absolutely unrelated things. The first attempts to get the value of the key "a" in hash `%key2value`, the other in the hash referenced by the scalar variable `$key2value`. Two different variables, no surprise that you do not find anything in one after you wrote to the other. Jenda Enoch was right! Enjoy the last years of Rome.	[reply] [d/l] [select]
Re^3: Creating a hash out of multiple XML attributes in an elment by Anonymous Monk on Jul 14, 2013 at 23:32 UTC
mirod used a key called "key", if you want a key called "a", maybe you should replace "key" with "a" or something like that, I haven't read perlintro so I'm not sure	[reply]