Php Docusign Api不工作

我已经使用了这个API代码。它显示一个错误“调用webservice时出错，状态为：0”。 我想在我的网站中添加Docusign，但无法添加

<?php

// Input your info here:
$email = "***";         // your account email (also where this signature request will be sent)
$password = "****";     // your account password
$integratorKey = "***";     // your account integrator key, found on (Preferences -> API page)
$recipientName = "***";     // provide a recipient (signer) name
$templateId = "***";        // provide a valid templateId of a template in your account
$templateRoleName = "***";  // use same role name that exists on the template in the console

// construct the authentication header:
$header = "<DocuSignCredentials><Username>" . $email . "</Username><Password>" . $password . "</Password><IntegratorKey>" . $integratorKey . "</IntegratorKey></DocuSignCredentials>";

/////////////////////////////////////////////////////////////////////////////////////////////////
// STEP 1 - Login (to retrieve baseUrl and accountId)
/////////////////////////////////////////////////////////////////////////////////////////////////
$url = "https://demo.docusign.net/restapi/v2/login_information";
$curl = curl_init($url);
curl_setopt($curl, CURLOPT_HEADER, false);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
//curl_setopt($curl, CURLOPT_HTTPHEADER, array("X-DocuSign-Authentication: $header"));
curl_setopt($curl, CURLOPT_HTTPHEADER, array("X-DocuSign-Authentication: $header"));

$json_response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);

if ( $status != 200 ) {
    echo "error calling webservice, status is:" . $status;
    exit(-1);
}

$response = json_decode($json_response, true);
$accountId = $response["loginAccounts"][0]["accountId"];
$baseUrl = $response["loginAccounts"][0]["baseUrl"];
curl_close($curl);

// --- display results
echo "\naccountId = " . $accountId . "\nbaseUrl = " . $baseUrl . "\n";

/////////////////////////////////////////////////////////////////////////////////////////////////
// STEP 2 - Create and envelope using one template role (called "Signer1") and one recipient
/////////////////////////////////////////////////////////////////////////////////////////////////
$data = array("accountId" => $accountId, 
    "emailSubject" => "DocuSign API - Signature Request from Template",
    "templateId" => $templateId, 
    "templateRoles" => array( 
            array( "email" => $email, "name" => $recipientName, "roleName" => $templateRoleName )),
    "status" => "sent");                                                                    

$data_string = json_encode($data);  
$curl = curl_init($baseUrl . "/envelopes" );
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_POST, true);
curl_setopt($curl, CURLOPT_POSTFIELDS, $data_string);                                                                  
curl_setopt($curl, CURLOPT_HTTPHEADER, array(                                                                          
    'Content-Type: application/json',                                                                                
    'Content-Length: ' . strlen($data_string),
    "X-DocuSign-Authentication: $header" )                                                                       
);

$json_response = curl_exec($curl);
$status = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ( $status != 201 ) {
    echo "error calling webservice, status is:" . $status . "\nerror text is --> ";
    print_r($json_response); echo "\n";
    exit(-1);
}

$response = json_decode($json_response, true);
$envelopeId = $response["envelopeId"];

// --- display results
echo "Document is sent! Envelope ID = " . $envelopeId . "\n\n"; 
?>

---

请任何人都可以帮助我，在这个过程中。我搜索了所有API，但显示了相同的错误。

将下面给出的这一行放在下面

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);

---

在这一行之后，

curl_setopt（$curl，CURLOPT_HTTPHEADER，数组（“X-DocuSign-Authentication:$header”）希望您的问题能得到解决。
对我来说似乎是服务器限制问题哪种类型的服务器限制问题？我使用的代码正确吗？谢谢你的支持，先生。你能告诉我一些事情吗，我怎样才能在我的网站上集成docusign。我想在我的文档中设置一个签名框，该签名框是在填写表单后生成的。提交后，此表单将以pdf格式生成。