七牛图片文件上传功能

//首先下载好七牛的PHPSDK放到VENDOR目录下，下面在引入VENDOR下的autoload.php时会自动加载所有文件
public function upload(){

    if(Request::instance()->isPost()){
        //引入vendor下的七牛SDK
        vendor('Qiniu.autoload');
        $ak = config('QI_NIU_ACCESSKEY');
        $sk = config('QI_NIU_SECRETKEY');
        //获取HTML页面提交过来的name="image"的图片文件
        $file = 
equest()->file('image');

        $filePath = $file->getRealPath();
        $ext = pathinfo($file->getInfo('name'),PATHINFO_EXTENSION);
        $key = substr(md5($file->getRealPath()),0,5).date('YmdHis').rand(0,9999).'.'.$ext;

        $auth = new QiniuAuth($ak,$sk);

        $bucket = config('QI_NIU_BUCKET');
        $domain = config('QI_NIU_DOMAIN');
        //获取图片上传凭证
        $token = $auth->uploadToken($bucket);

        $uploadMgr = new UploadManager();
        //图片上传
        list($ret,$err) = $uploadMgr->putFile($token,$key,$filePath);
        if($err !== null){
            echo ['err'=>1,'msg'=>$err,'data'=>''];
        }else{
            var_dump($ret);
            //正常情况下会返回下面这种数组，KEY则是文件名或图片文件名.
           // 'hash' => string 'FqUNBBH7VP_e3qTDhrn0AXTKrYJj' (length=28)
            //'key' => string '44a34201808201848142633.pdf' (length=27)
        }
    }else{
        return $this->fetch('image');
        
    }