<?php //區塊 class Block{//前一個區塊HASH值public $prevHash;//當前區塊HASH值public $hash;//區塊生成的時間戳public $timestamp;//區塊保存的數據public $data;public function __construct($prevHash,$data){$this->prevHash = $prevHash;$this->timestamp = time();$this->data = $data;$this->setBlockHash();}public function setBlockHash(){$data = serialize($this);//var_dump($data);die();$this->hash = hash('sha256',$data);}public function getBlockHash(){return $this->hash;}}class BlockChain{public $blocks = [];public function __construct(){$this->blocks[] = new Block('',"zk");}public function addBlocks($data){$prevBlock = $this->blocks[count($this->blocks) - 1];$this->blocks [] = new Block($prevBlock->getBlockHash(),$data);} }(new Block('','zk'))->setBlockHash();$blockChain = new BlockChain(); $blockChain->addBlocks('block 1'); $blockChain->addBlocks('blocks 2');$blockChainList = $blockChain->blocks;foreach ($blockChainList as $block){printf("PrevHash:%s\n",$block->prevHash);printf("Data:%s\n",$block->data);printf("Hash:%s\n",$block->hash);printf("\n"); }

結果：

> $ php btc.php PrevHash: Data:zk > Hash:8689f7e02b4bf853892e6c13bea62c7b1e10f00652494f0d069a63711ead772f > > PrevHash:8689f7e02b4bf853892e6c13bea62c7b1e10f00652494f0d069a63711ead772f > Data:block 1 > Hash:83456b3f7d9d202cb756872fa1c8f774980d708872b8d96e592b424973a33854 > > PrevHash:83456b3f7d9d202cb756872fa1c8f774980d708872b8d96e592b424973a33854 > Data:blocks 2 > Hash:31effc4968efdab5082917acde81efd1a91e25d8e427c91155330cb73d2c67ea

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