Blockchain and php

Question

can someone please explain how this works.. I want to save and retrieve patients data with PHP (so it's gonna be a web app). but I still don't understand how blockchain can come in.
is block chain some kind of framework or concept?

Answer 1

The basic concept of blockchain is quite simple: a distributed database that maintains a continuously growing list of ordered records.
For some really basic examples of how a blockchain works check out these links that helped me previously.
https://github.com/rhondle/BlockChain
https://medium.com/@lhartikk/a-blockchain-in-200-lines-of-code-963cc1cc0e54