php文件获取Kraken API的内容json

<?php
// 设置Kraken API的URL和参数
$apiUrl = 'https://api.kraken.com/0/public/Ticker';
$pair = 'XBTUSD'; // 交易对，比特币对美元
$params = array(
    'pair' => $pair
);

// 发送HTTP请求
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $apiUrl . '?' . http_build_query($params));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$response = curl_exec($ch);
curl_close($ch);

// 解析JSON数据
$data = json_decode($response, true);

// 处理返回的数据
if ($data && isset($data['result'][$pair])) {
    $ticker = $data['result'][$pair];
    echo '最新价格: ' . $ticker['c'][0] . PHP_EOL;
    echo '最低价格: ' . $ticker['l'][0] . PHP_EOL;
    echo '最高价格: ' . $ticker['h'][0] . PHP_EOL;
} else {
    echo '获取Kraken API数据失败。' . PHP_EOL;
}
?>