話不多說，直接上程式碼

public function image(Request $request){
        $param = $request->param();
//目錄的upload資料夾下
        $up_dir = "uploads/".date('Ymd', time()) . "/";  //建立目錄
        if(!file_exists($up_dir)){
            mkdir($up_dir,0777,true);
        }
        $base64_img = trim($param['image']);
 
        if(preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_img, $result)){
            $type = $result[2];
            if(in_array($type,array('pjpeg','jpeg','jpg','gif','bmp','png'))){
                $new_file = $up_dir.time().'.'.$type;
                if(file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_img)))){
                    $img_path = str_replace('../../..', '', $new_file);
                    return json(array('code'=>0,'data'=>$img_path,'msg'=>'成功'));
                }else{
                    return json(array('code'=>1,'data'=>'','msg'=>'圖片上傳失敗'));
                }
            }else{
                //檔案型別錯誤
                return json(array('code'=>1,'data'=>'','msg'=>'圖片上傳型別錯誤'));
            }
        }
    }
 

轉載 ：https://blog.csdn.net/zhangweiguangsunjiao/article/details/100861750

------------------------------------------------------------自己專案-----------------------------------------------------------------------

   public function upload_free_img()
    {




        //todo 前後端分離，前臺傳圖片的base64,後臺獲取base64流把圖片儲存在伺服器中

        $img = $_POST['imgbase64'];
        //目錄的upload資料夾下
        $up_dir = "uploads/base64/upload_free_img".date('Ymd', time()) . "/";  //建立目錄
        if(!file_exists($up_dir)){
            mkdir($up_dir,0777,true);
        }
        $base64_img = $img;

        if(preg_match('/^(data:\s*image\/(\w+);base64,)/', $base64_img, $result)){
            $type = $result[2];
            if(in_array($type,array('pjpeg','jpeg','jpg','gif','bmp','png'))){
                $new_file = $up_dir.time().'.'.$type;
                if(file_put_contents($new_file, base64_decode(str_replace($result[1], '', $base64_img)))){
                    $img_path = str_replace('../../..', '', $new_file);
                    return json(array('status'=>200,'data'=>$img_path,'msg'=>'成功'));
                }else{
                    return json(array('status'=>400,'data'=>'','msg'=>'圖片上傳失敗'));
                }
            }else{
                //檔案型別錯誤
                return json(array('status'=>400,'data'=>'','msg'=>'圖片上傳型別錯誤'));
            }
        }

    }