如何在php laravel excel中将表单复制到另一个表单中?

我的问题就像标题所说的那样! 我怎么能复制一个Excel表单内容到另一个使用marawebsite的laravel excel!

Excel::load(Input::file('file'), function($file) { $sheet1 = $file->setActiveSheetIndex(0); Excel::create('Filename', function($excel) use($sheet1) { // Create first sheet $excel->sheet('First sheet', function($sheet) use ($sheet1){ $sheet = $sheet1; }); })->export('xls'); }); 

 Excel::load(Input::file('file'), function($file) { $sheet1 = $file->setActiveSheetIndex(0); Excel::create('Filename', function($excel) use($sheet1) { // add $sheet1 for new file $excel->addExternalSheet($sheet1) })->export('xls'); });