Thinkphp5封装上传图片

<?php
namespace app\api\controller;
use think\Controller;
use think\Db;

class Plus extends Base{

    public function __construct(){
    parent::__construct();
    $this->logic=new \app\plus\logic\Image();
}    //上传图片
    public function upload_img(){

        $file=$_FILES['myfile'];

        if(!$user_id){
            $user_id=$_REQUEST[user_id];
        }
        $data=$this->logic->Upload_img($file,$type,$user_id);
        echo json_encode($data);
    }
}

public function __construct(){
        $this->db= new \app\userweb\model\PublicModel();
        // $this->img_url="http://".$_SERVER["HTTP_HOST"]."/lingdu/web/";
        $this->img_url=config('DOMAIN')."/";
    }    public function Upload_img($file,$type,$user_id){
        // echo $_SERVER["HTTP_HOST"];exit;
        ini_set('display_errors', 'Off');
        error_reporting(E_ALL & ~ E_WARNING);

        if(!$type){
            $type="public";
        }
        if(!$user_id){
            $user_id="0";
        }
        if ($file==null){
            $data['status']="10009";
            return $data;
            exit;
        }
        $tmp_type=$file['type'];
        $uptypes=array('image/jpg','image/jpeg','image/png','image/pjpeg','image/gif','image/bmp','image/x-png');
        if(!in_array($tmp_type,$uptypes)){
            $data['status']="10006";
        }else {
            //var_dump($user_id);
            $fliedir="Uploads/";
            mkdir($fliedir);
            $fliedir=$fliedir."$type/";
            mkdir($fliedir);
            $fliedir=$fliedir."$user_id/";
            mkdir($fliedir);
            $cur_time=uniqid()."-".time();
            $file_type=str_replace("image/","",$tmp_type);
            $file_name=$fliedir.$user_id.'-orogin-'.'-'.$type.'-'.$cur_time.".".$file_type;
            move_uploaded_file($file["tmp_name"],$file_name);
            $none=file_exists($file_name);
            //var_dump($file_name);
            if ($none!=null){
                $image = new \think\Image();
                $data["status"]=10001;
                $data["img_orogin"]=$this->img_url.$file_name;
                $image->open($file_name);
                $img_thumb=$fliedir.$user_id.'-thumb'.'-'.$type.'-'.$cur_time.".".$file_type;
                if ($type=="goods"){
                    // 按照原图的比例生成一个最大为150*150的缩略图并保存为thumb.jpg
                    $image->thumb(300, 300,\think\Image::IMAGE_THUMB_FIXED)->save($img_thumb);
                //  $image->thumb(800, 800,\Think\Image::IMAGE_THUMB_FIXED)->save($file_name);
                }else {
                    $image->save($img_thumb);
                }

                $data["img_thumb"]=$this->img_url.$img_thumb;
            }else {
                $data["status"]=10012;
            }
        }   

    //  dump($data);
        return $data;
    }