thinkphp3.2 生成多张缩略图实践

tp3.2使用thumb方法生成多张缩略图
$upload = new \Think\Upload();// 实例化上传类<br>         $upload->maxSize   =     3145728 ;// 设置附件上传大小<br>         $upload->exts      =     array('jpg', 'gif', 'png', 'jpeg');// 设置附件上传类型<br>         $upload->rootPath  =      "./Public/Admin/Uploads/"; // 设置附件上传目录// 上传文件<br>         $upload ->autoSub  = true;<br>         $upload ->subName  = array('date','Ymd');<br>         //设置上传文件规则<br>         $upload->saveRule           = 'uniqid';<br>         $info   =   $upload->uploadOne($_FILES['photo']);<br>         if(!$info) {<br>             // 上传错误提示错误信息<br>             $this->error($upload->getError());<br>         }else {<br>             // 上传成功 获取上传文件信息<br>             $img = $info['savepath'] . $info['savename'];<br>             $image = new \Think\Image();<br>             $BinImg = $upload->rootPath . "$img"; // 获得原图绝对路径<br>             $image->open($BinImg); // 打开原图<br>             // 添加水印<br>             // $image ->water($upload->rootPath."logo.png")-> save($upload ->rootPath.$img);<br>             // 生成一张<br>            // $image ->thumb(278,206,2);  // 设置宽高和缩略类型<br> <br>            // 设置缩略图宽、高、前缀<br>             $thumb = array(<br>                 1 => array('w' => 278, 'h' => 206, 'n' => '278x206_'),<br>                 2 => array('w' => 178, 'h' => 106, 'n' => '178x106_')<br>             );<br>             foreach ($thumb as $k => $v){<br>                 $image->thumb($v['w'],$v['h'], 2);  // 设置宽高和缩略类型<br>                 // 保存缩略图片<br>                 $smallimg[$k]= $info['savepath'] . "$v[n]" . $info['savename'];<br> <br>                 $image->save($upload->rootPath . $smallimg[$k]);<br>                 $_POST['small'.$k] = $smallimg[$k];<br>             }<br>             $_POST['goods_img'] = $img;<br>          <br>         }<br>         var_dump($_POST);exit;