scraping the required data from RSS

[sheraz]

hi, i m working on a project in which i have to read the data from RSS. but the problem is how i will get the required data. i have see some tutorials but they are reading whole document. Can anybody help me that how i can solve this problem.

:'(--/

[cags]

An RSS feed is essentially an XML document. As such it can be parsed with any of the DOM document technologies. One option would be to use the simplexml extension. I believe there is an example of parsing xml in the tutorials section of this site.

[sheraz]

well i thanks alot sir, a found the solution, now i have another requirement, actually reading rss link one by one will not be a so good, because it will be a static approach, my requirement is that whenever the site rss links are updated, then i automatically get the updates. is there any function or library which can help me. a friend of mine told me that i have to create a crawler, but how to develope a crawler, is there any function or library available in php,

[Daniel0]

Just read it periodically and load the links you haven't already got. Each entry will have a publish date, so you can just store when you last checked the feed and disregard entries older than that timestamp.