Forwarding my text messages to my email is it possible?

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iOS and iPadOS

I'm thinking about getting my number changed, and I know from my ex girlfriend's iPhone 4 that all text and voice messages disappear when the number is changed. I would like to keep my text messages, but putting them on my PC using iExplorer is out of the question right now. Is there a way on an iPhone 5C running iOS 7.0.6 to forward my text messages to my email like my friend can on his Android phone, so that I can still have a copy of them after my number is changed? I have yet to find an option to do this in the built-in Messages app. If there's a way to do this in the built-in Messages app, or an accessible alternative app that can do this, please share it here. Thanks.

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