thinkphp5.1调用七牛云SDK上传文件

class Upload
{ public static function image(){
if(empty($_FILES['file']['tmp_name'])){
exception('你提交的图片数据不合法',404);
}
// 图片的本地路径
$file = $_FILES['file']['tmp_name'];
// 换取上传图片的后缀
// $ext = explode('.',$_FILES['file']['name'])[1];
$pathinfo = pathinfo($_FILES['file']['name']);
$ext = $pathinfo['extension'];
$config = config('qiniu');
// 构建一个鉴权对象
$auth = new Auth($config['ak'],$config['sk']);
// 生成上传的token
$token = $auth->uploadToken($config['bucket']);
// 上传到七牛后保存的文件名
$key = date('Y').'/'.date('m').'/'.substr(md5($file),0,5).date('YmdHis').mt_rand(0,9999).'.'.$ext; // 初始化UploadManager类
$uploadMgr = new UploadManager();
list($ret,$err) = $uploadMgr->putFile($token,$key,$file);
if($err !== null){
return null;
}else{
return $key;
}
}