Berre Posted August 2, 2012 Share Posted August 2, 2012 I have an external RSS feed that I want to check regularly. The feed doesn't update often (maybe once or twice a week), but when it does, I want to be informed within a fairly short time. RSS readers and such gets updated with only a few minutes after a feed is updated, but are they downloading the RSS file every 3 minutes or is there some other way to ask for last updated timestamp of a document or something? I fear that retrieving external RSS feeds every 3 minutes with file_get_contents() and parsing it with SimpleXML() to look for updates would result in a ban due to continuous hammering. Or is this what all RSS readers does? I don't need to update every 3 minutes or so, but it shouldn't take longer than 15 minutes or so. Quote Link to comment Share on other sites More sharing options...
peipst9lker Posted August 2, 2012 Share Posted August 2, 2012 Check if your RSS provider has something like a checksum or hash value of the newest RSS. If so you can use it to check for changed else you have to download the RSS over and over again. I guess you're not getting banned for this (except you download it 100 times a second) Quote Link to comment Share on other sites More sharing options...
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