tp批量压缩图片

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<?php namespace app\index\controller;   use think\Controller;   class Index extends Controller {     public function index()     {         return '开发中。。';     }         public function test(){           if($this->request->isPost()){               $file = request()->file('file');             if(empty($file)) return showError(config('status.badRequest'),'上传文件不能为空');             $data['file'] = $file;             $info = $file->validate(['ext'=>'bmp,jpg,JPG,PNG,GIF,png,tif,gif,pcx,tga,exif,fpx,svg,psd,cdr,pcd,dxf,ufo,eps,ai,raw,WMF,webp'])->move(ROOT_PATH . 'public' . DS . 'uploads');             if($info){                 $filename = $info->getSaveName();                 $filename = str_replace('\\','/',$filename);                 $filename = '/uploads/'.$filename;                 $image = \think\Image::open( './'.$filename);                   $filenameInfo = explode('.',$filename);                 $thumbImg = $filenameInfo[0].'_thumb_.'.$filenameInfo[1];                 // 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.png                 $image->thumb(600,600,\think\Image::THUMB_SCALING)->save( './'.$thumbImg);                 //保存照片exif信息                 $exif = exif_read_data('./'.$filename,0, true);                 halt($exif);             }           }             return $this->fetch('');     }           public function dirFile(){         $dir = "./uploads";  //要获取的目录         ini_set('max_execution_time', '0');         $this->scan_all($dir);       }         function scan_all($dir){         $temp = scandir($dir);         if(is_array($temp) && count($temp)>2){             array_shift($temp);             array_shift($temp);             foreach($temp as $v){                 $cur_dir=$dir.DIRECTORY_SEPARATOR.$v;                 if($v == 'ueditor') {                     continue;                 }                 if(is_dir($cur_dir)){                       echo "<blockquote>";                     $this->scan_all($cur_dir);                     echo "</blockquote>";                 }else if(is_file($cur_dir)){                       $filename = $dir.'/'.$v ;                       $filename = str_replace('\\', '/', $filename);                       if(strstr($filename, 'thumb') !== false ){                           continue;                       }                     echo "<blockquote>";                     echo $filename;                     $this->yasuo($filename);                     echo "</blockquote>";                       }else{                     echo 'err';                 }             }         }     }       public function yasuo($filename){           $image = \think\Image::open($filename);         $filename = ltrim($filename, '.');         $filenameInfo = explode('.',$filename);         $thumbImg = $filenameInfo[0].'_thumb_.'.$filenameInfo[1];         $image->thumb(600,600,\think\Image::THUMB_SCALING)->save( './'.$thumbImg,$type = null, $quality = 100);       }               }