I am ready to tear my hair out. I have been debugging for 5 hours now and I have found the bug in my morass of code, but I don't understand why it is occuring...

Here is a sample script that demonstrates the bug.

My element 00 in $hash doesn't print when I know it is there. I want to believe this is a perl bug, but I suspect it is really my not understanding how 00 is getting evaluated or something. 

@foo = (0,1);
$hash{00} = "data";
$hash{10} = "moredata";

print '$hash{00} is ', $hash{00} , "\n";
print '$hash{$foo[0] . "0"} is ', $hash{$foo[0] . "0"}, "\n";
print '$hash{$foo[1] . "0"} is ', $hash{$foo[1] . "0"}, "\n";
print '$hash{10} is ', $hash{10} , "\n";

[download]

The results are:

NOTE LINE 2 after is there is nothing! 

$hash{00} is data
$hash{$foo[0] . "0"} is 
$hash{$foo[1] . "0"} is moredata
$hash{10} is moredata

[download]

What is going on?

-monkfish
The fishy monk.

In reply to Hash element that won't print. Perl Bug??? by monkfish

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