您好，从昨天开始，我试图在区块链上获取交易哈希发送许多 api 并发送到 mysql，但它不起作用。我在 mysql $txid 处插入，但根据示例“2147483647”给出了错误的结果，我非常感谢您的帮助。下面是我的代码。
<p>$guid="***********";
$firstpassword="**********";
$secondpassword="**************";
$amounta="3599";
$amountb="2000";
$amountc="2000";
$addressa="********";
$addressb="***********";
$addressc="******";
$recipients=urlencode('{
"'.$addressa.'": '.$amounta.',
"'.$addressb.'": '.$amountb.',
"'.$addressc.'": '.$amountc.'
}');
$json_url =
"https://blockchain.info/pt/merchant/$guid/sendmany?password=******&second_password=********&recipients=$recipients&note=********";
$json_data = file_get_contents($json_url);
$json_feed = json_decode($json_data);
$message = $json_feed->message;
$txid = $json_feed->tx_hash;
$tx = "$txid";
$servername = "localhost";
$username = "******";
$password = "*******";
$dbname = "*****";
// Create connection
$conn = new mysqli($servername, $username, $password, $dbname);
// Check connection
if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$<font color="#FF0000">sql = "INSERT INTO payments (user_id, transaction_hash,
payment, date)
VALUES ('5331', '$txid', '4', now())";
if ($conn->query($sql) === TRUE) {
echo "New record created successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;<br>
}
$conn->close();
?>