刚开始时学习OSS，按照PHP SDK文档编写了以下代码，OSSClient初始化OK，但是putObject出错，请大侠们帮助指点。万分感谢！




错误信息如下： http status: 400, requestId: 566427D08CDE4EE0393E45D1, Code: InvalidBucketName, Message: The specified bucket is not valid.
我的理解是bucket的名字不争取，但是我确认了是正确的，实在想不明白是哪里出了问题。


代码如下：
try {          
self::$ossClient = new OssClient(AL_OSS_ACCESS_ID, AL_OSS_ACCESS_KEY, AL_OSS_ENDPOINT);            
echo print_r(self::$ossClient, true);            
echo "<p>";                        
$bucket= "mytestbucket2016";            
$object = "uploadname.txt";            
$content = "Hi, OSS.";            
try {                 self::$ossClient->putObject($bucket, $object, $content,null);   ／／这行代码出错            
}
catch (OssException $e) {                
echo $e->getMessage();  ／／异常信息是 Code: InvalidBucketName, Message: The specified bucket is not valid.           
}
                                }
catch (OssException $e) {            
print $e->getMessage();        
}