$accessKeyId = "<your_access_key_id>"; ;
$accessKeySecret = "<your_access_key_secret>";
$endpoint = "http://oss-cn-hangzhou.aliyuncs.com";

$client = new OSSClient($accessKeyId, $accessKeySecret, $endpoint);

$bucket = "<your_bucket_name>";
$object = "doc/dest_demo_01.txt";
$content = "Hello, OSS!";

$client->putObject($bucket, $object, $content);