Have you checked what's in the INPUT hash table?

Try to add Data::Dumper to see what's held in INPUT.
use Data::Dumper;
...
print "Content-Type: text/html\n\n";
print "<HTML><BODY><Pre>\n"
print Dumper(\%INPUT); # insert this after the foreach loop
print "</Pre></BODY></HTML>\n"
exit(0);
...

[download]
And see what's held in INPUT. The reason why $address remain undefined is because the hash keys you are looking for might not exist in the hash table.

In reply to Re: Extracting name value pairs from Environment Variables by Roger
in thread Extracting name value pairs from Environment Variables by jonnyfolk

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