[問題]等級圖示系統說明頁的問題

[sandylam]

我想架一個等級圖示系統說明頁的mod
可是出現了問題

我看過本站有關的文章
也有網友和我有同一樣的經驗
http://phpbb-tw.net/phpbb/viewtopic.php ... F%C5%B9%CF

執行這個mod時，我看到以下的error

Warning: Cannot add header information - headers already sent by (output started at /ha/welovepet/public_html/phpBB2/language/lang_chinese_traditional_taiwan/lang_ranking.php:12) in /ha/welovepet/public_html/phpBB2/includes/page_header.php on line 464

Warning: Cannot add header information - headers already sent by (output started at /ha/welovepet/public_html/phpBB2/language/lang_chinese_traditional_taiwan/lang_ranking.php:12) in /ha/welovepet/public_html/phpBB2/includes/page_header.php on line 466

Warning: Cannot add header information - headers already sent by (output started at /ha/welovepet/public_html/phpBB2/language/lang_chinese_traditional_taiwan/lang_ranking.php:12) in /ha/welovepet/public_html/phpBB2/includes/page_header.php on line 467

Page_header:
line 464
header ('Cache-Control: private, pre-check=0, post-check=0, max-age=0');
line 466
header ('Expires: ' . gmdate('D, d M Y H:i:s', time()) . ' GMT');
line 467
header ('Last-Modified: ' . gmdate('D, d M Y H:i:s') . ' GMT');

lang_ranking.php
line 12
?>

後來我把page_header.php line 464-467 都刪除去\r
問題就解決了
沒有error發生
可是，我想問一下，line 464-467是有什麼作用？
如果刪除了會有什麼影響？
會有其他方法解決這error的問題嗎？



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