TP5 Ajax上傳圖片

<input type="file" name="pic1" id="pic" accept="image/gif,image/jpeg,image/x-png"/>

<script>
    //上傳圖片
    $('#pic').change(function(event) {
        var formData = new FormData();
        formData.append("file", $(this).get(0).files[0]);
        $.ajax({
            url:"..........",
            type:'POST',
            data:formData,
            cache: false,
            contentType: false,    //不可缺
            processData: false,    //不可缺
            success:function(data){
                console.log(data)
                //{code: 1, msg: "成功", photo: "upload/default/20180815/5b73c6fadfdf8.jpg"}
            }
        });
    });
</script>

/**
     * Ajax上傳圖片
     */
    public function uploadPic(){
        //接收文件
        $file=request()->file('file');
        if($file==null){
            exit(json_encode(array(
                'code'=>'error',
                'msg'=>'請上傳文件！'
            )));
        }
        $filePaths= 'upload' . DS . 'default' . DS .date('Ymd',time());

        if(!empty($file)){
            $info = $file->validate(['size'=>10485760,'ext'=>'gif,jpg,jpeg,png,bmp,swf'])->rule('uniqid')->move($filePaths);
            $error = $file->getError();
            //驗證文件後綴後大小
            if(!empty($error)){
                dump($error);exit;
            }
            if($info){
                // 成功上傳後 獲取上傳信息
                $info->getSaveName();
                $photo = $info->getSavename();
            }else{
                // 上傳失敗獲取錯誤信息
                $file->getError();
            }
        }else{
            $photo = '';
        }
        if($photo !== ''){
            return ['code'=>1,'msg'=>'成功','photo'=>$filePaths.DS.$photo];
        }else{
            return ['code'=>404,'msg'=>'失敗'];
        }
    }