example-excel-generator-export-preparation.php

<?php

class MyClass 
{
    public function export()
    {
      $exportable = $this->prepareData($tags);
      // ...
      $excel->sheet('Tags', function ($sheet) use ($exportable) {
          $sheet->fromGenerator($exportable, null, 'A1', false);
      });
      // ...
    }
  
    /**
     * This is how it looks like now
     *
     * @param array $tags
     *
     * @return array
     */
    protected function prepareArrayData(array $tags): array
    {
        $data = [];

        foreach ($tags as $tag) {
            $data[] = [
                'ID'         => $tag->id,
                'Tag'        => strip_tags($tag->tag),
                'Status'     => strip_tags($tag->status),
                'Created at' => $tag->created_at,
                'Updated at' => $tag->updated_at,
            ];
        }

        return $data;
    }
  
    /**
     * This is how it **SHOULD** look like
     *
     * @param array $tags
     *
     * @return array
     */
    protected function prepareData(array $tags): array
    {
        foreach ($tags as $tag) {
            yield [
                'ID'         => $tag->id,
                'Tag'        => strip_tags($tag->tag),
                'Status'     => strip_tags($tag->status),
                'Created at' => $tag->created_at,
                'Updated at' => $tag->updated_at,
            ];
        }
    }
}