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Today, I would like to share with you the relevant knowledge points about whether php can write blockchain. The content is detailed and the logic is clear. I believe most people still know too much about this knowledge, so share this article for your reference. I hope you can get something after reading this article. Let's learn about it.

PHP can write chunk chains; you can define chunks using the code "class Block {hash value of the previous block public; hash value of the current public block; timestamp generated by the public block; data saved by the public block;}".

This article operating environment: Windows10 system, PHP7.1 version, Dell G3 computer.

Can php write block chain?

PHP can write block chains.

Use PHP code to define chunks:

Class Block {public $prevHash;public $hash;public $timeStpublic $data;}

PrevHash: the hash value of the previous block

Hash: the hash value of the current block

TimeStamp: timestamp of chunk generation

Data: data saved by a block

The fields prevHash, hash, and timeStamp are called blockheads in the blockchain, and the hash value of the chunk is calculated using the SHA-256 algorithm.

Practical use and significance of blockchain:

Blockchain is a decentralized distributed ledger. What is meant by decentralization is that there is no center, or everyone can be the center, which is different from the traditional way of centralization. Distributed ledger means that the data is not only stored on each node, but that each node will copy and share the data of the entire ledger.

In addition, the blockchain also has the characteristics of disintermediation and information transparency. For example, when we shop on Taobao, the fee we pay after placing an order is first transferred to Alipay, and the money will not be transferred to the seller's account until we receive the express delivery and confirm the receipt of the goods. In the blockchain, buyers and sellers can trade directly without using any platform as a third-party certification body to participate in it.

The system will publish the transaction information of the buyer and seller in the form of broadcast. After receiving the information, all hosts will record and back up the transaction data. An error in an order produced by one machine will not affect the backup data of other machines.

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