How can I extract my bitcoin public address from my bitcoin private key using PHP for Nodejs?

by Patoshi パトシ   Last Updated October 18, 2019 22:27 PM - source

I'm building out an application, but I need to verify if the bitcoin private keys have a positive balance. Is there a PHP script or some type of service that I can pass in a private key and outputs all the bitcoin public keys in 1... and 3... formats? From there I'll just pass those addresses to a block explorer.

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