exists tests for the existance of the last part of the expression. It will autovivify any earlier parts in the process. You need to code 

<p><code>
if(exists($foo{bar}{baz})) {
  print "\$foo{bar}{baz} exists\n";
}

[download]

as 

if(exists($foo{bar}) and exists($foo{bar}{baz})) {
  print "\$foo{bar}{baz} exists\n";
}

[download]

to prevent it.

Examine what is said, not who speaks.

The 7th Rule of perl club is -- pearl clubs are easily damaged. Use a diamond club instead.

In reply to Re: Autovivification with hash of hashes by BrowserUk
in thread Autovivification with hash of hashes by Mr_Person

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