将文本字符串与占位符一起保存在数据库中，然后在custom Helper或实体虚拟字段中使用str_replace

return str_replace(
      [
         '{{contact_name}}', // placeholders
         '{{contact_place}}', 
         '{{email}}',
      ],
      [
         $contact->name, // inputs
         $contact->place,
         $contact->email,
      ],
       // load template string from db
      // You can contact {{contact_name}} located at {{contact_place}}…
      $admin->template
   );