在 PHP 中解析解码 JSON（区块链 API）

Question

您好，我正在尝试从 json 格式的页面中提取一些信息

页面是：https://blockchain.info/fr/rawaddr/1BQLNJtMDKmMZ4PyqVFfRuBNvoGhjigBKF

这个 link 允许从一个地址获取所有比特币交易。全是引号，看不清楚

我想像原来的区块链网站一样展示一切 Blockchain Display view 开头会是这样的

$json = file_get_contents("https://blockchain.info/fr/rawaddr/1BQLNJtMDKmMZ4PyqVFfRuBNvoGhjigBKF");
var_dump(json_decode($json));

我可以从 JSO 提取基本信息到 php，但是这里有太多事务，我认为我们需要使用循环来显示所有内容，但我不知道该怎么做如果有人能在php第一笔交易中为我展示，那将是非常有同情心的。

在此先感谢您，如果您能做到这一点，您将真正帮助我！

Answer 1

如果您的目标是显示您要执行的所有 Tx 信息。

$json = file_get_contents("http://blockchain.info/fr/rawaddr/1BQLNJtMDKmMZ4PyqVFfRuBNvoGhjigBKF");
$txs = json_decode($json,1)['txs'];
echo"<pre>"; //just to get a human readable display
foreach($txs as $txinfo){
    echo"A new tx";
    //will display the full tx data
    print_r($txinfo);
}

echo"</pre>";

请注意，区块链交易可能有点复杂，因为一个交易可以有多个输入和多个输出。您可能还想循环输出以显示从交易中收到比特币的所有地址在这种情况下，您可以简单地添加另一个 foreach output

$json = file_get_contents("http://blockchain.info/fr/rawaddr/1BQLNJtMDKmMZ4PyqVFfRuBNvoGhjigBKF");
$txs = json_decode($json,1)['txs'];
echo"<pre>"; //just to get a human readable display
foreach($txs as $txinfo){
    echo"A new tx";
    //will display the full tx data
    print_r($txinfo);
    // will cycle trough all output for each tx
    foreach ($txinfo['out'] as $outgoingTransaction)
    {
        //Will display the receiving address
       $receivingAddress = $outgoingTransaction['addr'];
       //will get the amount sent in satoshis
       $receivingAmountInSatoshi = $outgoingTransaction['value'];

       echo"<br>1BQLNJtMDKmMZ4PyqVFfRuBNvoGhjigBKF sent to $receivingAddress  $receivingAmountInSatoshi satoshis <br>";

    }

}

用于添加 tx 理解逻辑的更高级代码

$walletAddress = '1AWKFrvFYuCC7ef2m2zX73pWu1C15FRGjR' ;
$json = file_get_contents("http://blockchain.info/fr/rawaddr/$walletAddress");
$txs = json_decode($json,1)['txs'];
echo"<pre>"; //just to get a human readable display

foreach($txs as $txinfo){

    $spendingTx = false ;
    $totalSpent = 0 ;
    $totalReceived = 0;

    echo"<p>Txid = $txinfo[hash]<br>";
    //print_r($txinfo);

    // we need to find out if the address is the sender or the receiver
    $senderData = reset($txinfo['inputs']); //using reset to get only the first input
    if ($senderData['prev_out']['addr'] ==$walletAddress ){
        //the address is the sender meaning the address is spending
        $spendingTx = true ;

    }

   //it's a spend tx then we cycle trough receivers
    if ($spendingTx) {

        foreach ($txinfo['out'] as $outgoingTransaction) {
            //Will display the receiving address
            $receivingAddress = $outgoingTransaction['addr'];
            //will get the amount sent in satoshis
            $receivingAmountInSatoshi = $outgoingTransaction['value'];
            $totalSpent = $totalSpent + $receivingAmountInSatoshi ;
            echo "<br>$walletAddress sent to $receivingAddress  $receivingAmountInSatoshi satoshis <br>";

        }

        echo "<br>Total spent = $totalSpent" ;

    }
        //it is not a spending tx so it's a receceiving tx
        else {

            foreach ($txinfo['out'] as $outgoingTransaction) {

                //We keep only receiving data concerning current wallet
                if ($outgoingTransaction['addr'] == $walletAddress) {
                    //Will display the receiving address
                    $receivingAddress = $outgoingTransaction['addr'];
                    //will get the amount sent in satoshis
                    $receivingAmountInSatoshi = $outgoingTransaction['value'];
                    $senderAddress = $senderData['prev_out']['addr'];
                    $totalReceived = $receivingAmountInSatoshi;
                    echo "<br>$walletAddress received $receivingAmountInSatoshi satoshis from $senderAddress<br>";

                }

            }
            echo "<br>Total received = $totalReceived" ;

        }

        echo"<br>end tx </p>";
}

echo"</pre>";

在 PHP 中解析解码 JSON（区块链 API）

Parsing Decoded JSON in PHP (blokchain API)

php

json

bitcoin

blockchain

blockchain.info-api