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

I am creating an application, but I need to verify if bitcoin private keys have a positive balance. Is there a PHP script or some kind of service that can pass in a private key and generate all bitcoin public keys in 1 … and 3 … formats? From there, I will pass those addresses to a block explorer.

How to send a bitcoin transaction with zero rate

Does anyone know how I can send bitchin zero rate transactions? I know I might not confirm it, I just want to know if there are wallets, sites or software that I can use to achieve this.

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I want to make use of a single bitcoin address for payment.

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