Bittrex API请求

Question

我试图通过bittrex API来平衡我的钱包，我不明白为什么bittrex文档提供的代码不起作用：

$apikey = 'xxx';
$apisecret = 'xxx';
$nonce = time();
$uri = 'https://bittrex.com/api/v1.1/market/getopenorders?apikey=' .
    $apikey . '&nonce=' . $nonce;
$sign = hash_hmac('sha512', $uri, $apisecret);
$ch = curl_init($uri);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('apisign:' . $sign));
$execResult = curl_exec($ch);
$obj = json_decode($execResult);

curl_exec函数返回false，我不明白为什么。 谢谢你的帮助！

Answer 1

尝试添加进一步的错误处理， 这样的事情

try {
    $ch = curl_init();

    if (FALSE === $ch)
        throw new Exception('failed to initialize');

    curl_setopt($ch, CURLOPT_URL, $uri);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

    $execResult = curl_exec($ch);

    if (FALSE === $execResult)
        throw new Exception(curl_error($ch), curl_errno($ch));

} catch(Exception $e) {

    trigger_error(sprintf(
        'Curl failed with error #%d: %s',
        $e->getCode(), $e->getMessage()),
        E_USER_ERROR);

}