在使用laravel excel 匯出excel資料時，xls格式會出現亂碼

一種解決辦法是 匯出格式變成csv

另外一種就是使用 ob_end_clean

附上自己使用laravel-admin封裝的通用匯出方法：針對頁面的顯示匯出對應資料

public function export()
{$file_name = date("Y-m-d") .'-'. $this->grid->model()->eloquent()->getTable();
    Excel::create($file_name, function($excel) use ($file_name
 
) {
$model_name= get_class($this->grid->model()->eloquent());
$excel->sheet($file_name, function($sheet) use ($model_name) {
$name = [];
$label = [];
foreach ($this->grid->columns() as $k => $v) {
$name[] = $v->getName();
$label[] = $v->getLabel();
            }
$data =$this
 
->getData();
$rows = [];
foreach ($data as $k => $v) {
$rows[] = array_dot($this->sanitize($v));
            }
$rows = collect($rows)->map(function($item) use ($name) {
return array_only($item, $name);
            });
$rows = $this->sort_arr($rows, $name, $model_name);
//dump($name);
            //dd($rows);
 
$sheet->row(1, $label);
$sheet->rows($rows);
ob_end_clean();
        });
    })->export('xls');//csv
}

/**
 * Remove indexed array.
 *
 * @param array $row
 *
 * @return array
 */
protected function sanitize(array $row)
{
return collect($row)->reject(function ($val) {
return is_array($val) && !Arr::isAssoc($val);
    })->toArray();
}
/**
 * @param $arr
 * @param $keys
 * @param $model_name
 * @return array
 */
public function sort_arr($arr, $keys, $model_name)
{
$new_arr = [];
foreach ($arr as $k => $v) {
foreach ($v as $kk => $vv) {
if (stripos($kk, '.')) {
list($l1, $l2) = explode('.', $kk);
if(method_exists($l1,'_gird_'.$l2)) {
$v[$kk] = call_user_func_array([ucwords($l1), '_gird_'.$l2], [$vv]);
                }
            } else {
if(method_exists($model_name,'_gird_'.$kk)) {
$v[$kk] = call_user_func_array([$model_name, '_gird_'.$kk], [$vv]);
                }
            }
        }
foreach ($keys as $kk => $vv) {
$new_arr[$k][$vv] = $v[$vv];
        }
    }
//dd($new_arr);
return $new_arr;
}