封装图片处理方法

案例一:小程序的图片处理

$file = request()->file(\'uploadimg\'); //接收图片
        //创建图片存放位置
        $upload_dir = ROOT_PATH . \'public/upload/images/\';
        if (!file_exists($upload_dir)) {
            mkdir($upload_dir, 0755, true);
        }
      
        if ($file) {
            // 移动到框架应用根目录/public/uploads/ 目录下
            $info = $file->rule(\'date\')->move($upload_dir);
             if ($info) {
                //获取文件名
                 $image_name = $info->getSaveName();
                 $fileurl = \'/upload/images/\'. $image_name;
                 return  $fileurl;
            }
        }else{
            echo \"错误\";
        }



案例二: 64图片处理方法
class Image extends  
{
    public function addimage($file = \'images\')
    {
        $img_url    = input(\'avatar\') ? input(\'avatar\') : \"\";
        if ($img_url) {
　　　　　　　//如果是http格式的不需要处理直接返回
            if (substr($img_url, 0, 4) == \'http\') {
                $src = $img_url;
                return $src;
                exit;
            } else {
                //处理图片
                $image_arr  = explode(\',\', $img_url);
                $img_data   = $image_arr[1];
                $img        = str_replace(\' \', \'+\', $img_data);
                $fileData   =  64_decode($img);
                $image_name = uniqid() . \'.png\';  //返回13位字符串
                $upload_dir = ENV::get(\'root_path\') . \'public/upload/\' . $file . \'/\';
                if (!file_exists($upload_dir)) {
                    mkdir($upload_dir, 0755, true);
                }
                $filedir = $upload_dir . \'/\' . $image_name;
                $src = config(\'website\') . \'/upload/\' . $file . \'/\' . $image_name;
                $status = file_put_contents($filedir, $fileData);
                if ($status) {
                    return json([\'status\' => 1, \'data\'=>$src,\'msg\' => \'操作成功\']);
                    exit;
                } else {
                    echo \"0\";exit;
                }
            }
        } else {
            return json([\'status\' => 0,\'data\'=>\'\', \'msg\' => \'请选择正确的图片格式!\']);
        }
    }
}

案例三:视频转mp4格式的处理

        $video_url        = input(\'video\'); //商品视频
        $uid              = input(\'uid\'); //用户身份id
        if($video_url){
            $video_arr    = explode( \',\', $video_url );
            $video_data   = $video_arr[1];
            $video        = str_replace( \' \', \'+\', $video_data );
            $fileData     =  64_decode( $video );
            //设置文件保存位置,若文件夹不存在 则创建文件夹
            $video_name   = $uid.time() . \'.mp4\';
            $upload_dir   = ENV::get(\'root_path\') . \'public/upload/product_video/\';
            if ( ! file_exists( $upload_dir ) ) {
                mkdir( $upload_dir, 0755, true );
            }
            //保存地址
            $filedir      = $upload_dir . \'/\' . $video_name;
            //视频链接
            $fileurl      = config( \'website\' ) . \'/upload/product_video/\'. $video_name;
            //保存到服务器
            $status       = file_put_contents( $filedir, $fileData );
            //确认是否保存到服务器
            if($status){
                //设置视频缩略图名字
                $tmp_name = uniqid();

                //执行linux ffmpeg命令 $fileurl 为视频可访问链接  最后一个参数是图片服务器保存路径
                $linux    = \"ffmpeg -i $filedir -r 1 -f image2  /www/wwwroot/qmh/public/upload/video_img/\".$tmp_name.\'.jpg\';
                exec($linux);   //没有执行

                //定义视频缩略图链接 返回视频链接和缩略图链接
                $url      = config( \'website\' ) . \'/upload/video_img/\' . $tmp_name.\'.jpg\';
                $url = $linux;
                // return json([\'video_url\'=>$fileurl,\'img_url\'=>$url]);
                return json([\'status\' => 1,\'data\'=>[\'video_url\'=>$fileurl,\'img_url\'=>$url],\'msg\' => \'视频上传成功\'],200);
            }else{
                return json([\'status\' =>0,\'data\'=>\'\',\'msg\' => \'视频上传失败\'],200);
            }
        }