How to extract bitcoin address only from a block in the blockchain-CodePudding

I'm trying to extract the bitcoin address from the blockchain. To be more specific if you go to this link https://blockchain.info/btc/block/1 you would see that the bitcoin address on that block is "12c6DSiU4Rq3P4ZxziKxzrL5LmMBrzjrJX"

What is the best way to extract that details using PHP/Json ?

CodePudding user response：

take a look at blockchain.com/api/blockchain_api

you got everything there.

CodePudding user response：

blockchain.info has an API to get block details.

blockchain.info API

Using https://blockchain.info/block-height/$block_height endpoint, you can pass $block_height as block number that you need.

Then by simple script like below, you can extract the addresses.

<?php

$blockTxs = getBlockTxs(1);

foreach ($blockTxs as $tx) {
    foreach ($tx->out as $out)
    {
        var_dump($out->addr);
    }
}


function getBlockTxs($height) {
    $curl = curl_init();

    curl_setopt_array($curl, array(
        CURLOPT_URL            => 'https://blockchain.info/block-height/' . $height,
        CURLOPT_RETURNTRANSFER => true,
        CURLOPT_ENCODING       => '',
        CURLOPT_MAXREDIRS      => 10,
        CURLOPT_TIMEOUT        => 0,
        CURLOPT_FOLLOWLOCATION => true,
        CURLOPT_HTTP_VERSION   => CURL_HTTP_VERSION_1_1,
        CURLOPT_CUSTOMREQUEST  => 'GET',
    ));

    $response = curl_exec($curl);

    curl_close($curl);
    return (json_decode($response))->blocks[0]->tx;
}