Amazing Perl output capturing `sniplet`

Here's a terrific little chunk of code I found while searching for a way to capture some output from a Perl script, the output of which was being used in a Server-Side-Include.

I wanted the ability to use the same script, capture the output into a variable, then "escape" the output for use as a javascript feed.

It works like a charm. All output going to STDOUT is captured into a variable without requiring any modification to your original subroutine.

You're then able to do some work on it before PRINTing it to the restored STDOUT.
Try it for yourself.

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