只使用PHP腳本獲取新的RSS條目？

Question

什麼我嘗試做：

取X個號碼的RSS從我的博客供稿和回聲只有新條目。我的問題是，如何知道哪些項目已經解析？

解決方案迄今：

取飼料每5小時，所有標題存儲的數據庫表或平面文件中。接下來運行檢查標題是否已經存在於數據庫中，如果不打印並保存在數據庫中。

但我不知道這是否是最好的做法呢？

如果有人知道一個快速的方式，這將是偉大的。對不起，我英文很差。

Answer 1

如果你正在解析的博客條目有一些日期指示器，只需要一個名爲CREATE的DATETIME類型的字段你的數據庫並在那裏保存這個日期值。然後，當您解析時選擇最新的DATETIME SELECT MAX(CREATED) FROM posts LIMIT 1，並且不要插入任何早於該日期的日期。

如果您希望某些博客延遲更新其rs，但將過去的日期保留爲其時間戳，則此解決方案可能存在輕微缺陷。

Answer 2

我認爲你應該存儲你提取的最後一篇文章的日期。當你下次獲取時，你只能收集那些比你存儲的日期更新的那些...

Answer 3

每個Feed都有一個與其關聯的唯一ID。您可以檢查該ID並將其存儲在數據庫中，而不是存儲標題。

嘗試從Pubsubhb http://superfeedr.com/documentation#pubsubhubbub

Answer 4

閱讀文檔我認爲，通常的做法是關閉的RSS提要的GUID元的工作。這有時是源文章的URI，有時是數字，有時是傳統的GUID。

使用此元素來查看您是否已收到文章會否定解析日期的需要，這就是Google Reader通常如何確定是否已收集了某個項目。

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