在Azure中创建blob时面临的问题

如何使用PHP在Microsoft Azure中的容器中创建blob。 遵循中的步骤 this link

但仍面临一些问题。PHP代码未执行。 如何将文件或目录推送到现有blob中?

<?php
require_once 'vendor/autoload.php';

use MicrosoftAzure\Storage\Common\ServicesBuilder;
use MicrosoftAzure\Storage\Common\ServiceException;

$connectionString = "DefaultEndpointsProtocol=https://sen123.blob.core.windows.net/srs123/sen123;AccountName=sen@gmail.com;AccountKey= ";

// Create blob REST proxy.
$blobRestProxy = ServicesBuilder::getInstance()->createBlobService($connectionString);

$content = fopen("D:\home\site\wwwroot\blobfile.txt", "r");
$blob_name = "sen123";

try    {
//Upload blob
$blobRestProxy->createBlockBlob("mycontainer", $blob_name, $content);
}
catch(ServiceException $e){
// Handle exception based on error codes and messages.
// Error codes and messages are here:
// http://msdn.microsoft.com/library/azure/dd179439.aspx
$code = $e->getCode();
$error_message = $e->getMessage();
echo $code.": ".$error_message."<br />";
}

?>

错误消息:此页面不工作 sen.azurewebsites。net当前无法处理此请求。 HTTP错误500