<?php require_once __DIR__ . '/../autoload.php'; use \Qiniu\Auth; $accessKey = getenv('QINIU_ACCESS_KEY'); $secretKey = getenv('QINIU_SECRET_KEY'); $bucket = getenv('QINIU_TEST_BUCKET'); $key = 'qiniu.mp4'; $newMime = 'video/x-mp4'; $auth = new Auth($accessKey, $secretKey); $config = new \Qiniu\Config(); $bucketManager = new \Qiniu\Storage\BucketManager($auth, $config); $err = $bucketManager->changeMime($bucket, $key, $newMime); if ($err) { print_r($err); }