RSS generator with caching function
Do you happen to know any good rss generator script with caching function. All the script I have found over the net so far doesn't support caching! I need the the content of rss to be generated automatically from database in a specified period of time.
Thanks in adva开发者_Go百科nce
First, to add caching to the script, it seems like it wouldn't be too hard to put Zend_Feed
and Zend_Cache
together - or just wrap your current generation script with Zend_Cache
.
Just setup the cache with your lifetime:
$frontendOptions = array(
'lifetime' => 7200, // cache lifetime of 2 hours
'automatic_serialization' => true
);
Then check if the cache is still valid:
if(!$feed = $cache->load('myfeed')) {
//generate feed
$cache->save($feed, 'myfeed');
}
//output $feed
I don't know how you form your RSS, but you can import an array structure to Zend_Feed
:
$rssFeedFromArray = Zend_Feed::importArray($array, 'rss');
Of course the best way may be to just use your current feed generator and save the output to a file. Use that file as the RSS feed, then use cron/web hooks/queue/whatever to generate the static file. That would be simpler, and use less resources, than having the generation script do the caching.
//feedGen.php
//may require some output buffering if the feed generator outputs directly
$output = $myFeedGenerator->output();
file_put_contents('feed.rss', $output);
Now the feed link is /feed.rss
, and you just run feedGen.php
whenever it needs to be refreshed. Serving the static file (not even parsed by php) means less for your server to do.
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