...
        : die 'Invalid value of tainted $bar: ' . $bar;

[download]
(though I'm not sure why you have $bar twice in the error message...)

First $bar is within single quotes, so not interpolated; second $bar is interpolated. die message will look like this: 

Invalid value of tainted $bar: tainted_bar_value ...

[download]

— Ken

In reply to Re^3: What's your favourite method of untainting? by kcott
in thread What's your favourite method of untainting? by Corion

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