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Editorial Team
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Asked: 2026-05-13T14:33:58+00:00

Is it possible to do something like this with regular expressions: encode and decode

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Is it possible to do something like this with regular expressions: encode and decode a number?

For example I want to encode the id 15123 (which actually represents a port number in my case) into something which is useless to a user, for example a seemingly random string such as c95Dd7!7. And then decode it afterwards.

I want to do this with a regular expression because I will need the decoded id for URL Rewriting.

I know javascript packer does about the same… but I have no clue where to start. Or are there any out-of-the-box examples or solutions for my question?

Thanks!

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1 Answer

  1. Editorial Team

    Going along with what Steve B. mentioned.

    My thought would be to do some simple encoding since it just appears you want to do a simple keep the user in the dark idea.

    Maybe reverse the bytes and output to a string? Should be fairly unreadable but easier to convert.

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