Sendgrid：权限被拒绝，错误凭据

Question

我使用sendgrid PHP发送电子邮件。这是我的代码：

require("sendgrid-php.php"); 

$from = new SendGrid\Email("Example User", "test@example.com"); 
$subject = "Sending with SendGrid is Fun"; 
$to = new SendGrid\Email("Example User", "to@gmail.com"); 
$content = new SendGrid\Content("text/plain", "and easy to do anywhere, even with PHP"); 
$mail = new SendGrid\Mail($from, $subject, $to, $content); 

$apiKey = getenv('SG.key......'); 
$sg = new \SendGrid($apiKey); 

$response = $sg->client->mail()->send()->post($mail); 
echo $response->statusCode(); 
echo '<pre>'; 
print_r($response->headers()); 
echo '</pre>'; 
echo $response->body(); 

当运行上述代码它显示以下错误消息我：

401阵列（ [0] => HTTP/1.1 401未授权 [1] =>服务器：nginx =>日期：2017年5月29日星期一17:52:44 GMT [3] => Content-Type：application/json [4] =>内容长度：88 [5] =>连接：保持活动 [6] => X-Frame-Options：DENY [7] => Access-Control-Allow-来源：https://sendgrid.api-docs.io =>访问控制 - 允许 - 方法：POST [9] =>访问控制允许标题：授权，内容类型，代表，x-sg-elas- acl => Access-Control-Max-Age：600 [11] => X-No-CORS-Reason：https://sendgrid.com/docs/Classroom/Basics/API/cors.html [12] => [13] =>）{“errors” {“message”：“Permission denied，wrong credentials”，“field”：null，“help”：null}]}

我不明白为什么我得到权限相关的错误，因为我刚创建API密钥。

Answer 1

这很常见。这将需要花费一个小时才能理解和做到。您需要设置env或使用用户名密码认证系统。请阅读official document on Github,documentation here和documentation here。