show all hash keys in ref

[arcnon]

whats wrong with this

foreach my $key (key (@$allMyItems[$ITEM_array_number]->{main}{item_rules})){
print "$key\n";
}

 

[teriviret]

You forgot the 's' in 'keys'.

 

[mikevh]

And keys requires a hash as its argument, which I don't see here. You're going to need to dereference the hash. I think you'd need something more like

foreach my $key (keys %{$allMyItems->[$ITEM_array_number]->{main}{item_rules}}) {
print "$key\n";
}

though this is somewhat guesswork since I don't really know your data structure.

 

[arcnon]

in this case when I add items to the sub structure

@$allMyItems[$ITEM_array_number]->{main}{item_rules}{newHash}= $hash_value