Sign Up to our social questions and Answers Engine to ask questions, answer people’s questions, and connect with other people.
Login to our social questions & Answers Engine to ask questions answer people’s questions & connect with other people.
Lost your password? Please enter your email address. You will receive a link and will create a new password via email.
Please briefly explain why you feel this question should be reported.
Please briefly explain why you feel this answer should be reported.
Please briefly explain why you feel this user should be reported.
Over at rsscache they have a way of refreshing the cache only when the feed has changed. Unfortunately its .Net.
I would like to know what approach I should take to achieve this in php.
How are changes in the feed detected? Simply by a timestamp (time node in the beginning of the feed)?
My feed would be a yahoo pipe that has mixed many feeds together. So either the yahoo feed must generate a combined timestamp, or my cache mechanism must automagically detect if the pipe has changed.
You have to:
Last-modifiedheader).If-modified-since).The server will either respond with
200(OK) and the content or304(Not Modified) and an empty response body.See RFC 2616.