Updating the hash (rare) does the reverse using:
 $val=join(',',(keys(%hash)))

[download]

No it doesn't. Your original $var contains key-value pairs, whereas the code for the reverse you show contains values only. To get the reverse, you need something like:

 $val = join(',', %hash);

[download]

Paul

In reply to Re: Efficient hash storage? by rev_1318
in thread Efficient hash storage? by whohasit

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