dtbl1231 2011-05-31 14:32
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重定向到404页面或显示404消息?

I am using a cms, and file-not-found errors can be handled in different ways:

  1. The page will not be redirected, but an error-msg will be displayed as content (using the default layout with menu/footer).
  2. The page will be redirected to error.php (the page looks the same like 1. but the address changed)
  3. The page will be redirected to an existing page, e.g. sitemap.php

Is there a method to be preferred in regards to search engines, or does this make no difference?

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  • doujuncuo9339 2011-05-31 14:36
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    If it's not found, then you should issue a 404 page. Doing a redirect causes a 302 code, followed by a '200 OK', implying that there IS some content. A 404 flat out says "there is no file. stop bugging me".

    Something like this would present a 404 page with proper header code:

    <?php
    if ($page_not_found) {
       header('This is not the page you are looking for', true, 404);
       include('your_404_page.php');
       exit();
    }
    
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