Here’s another short and quick little WordPress hack for ya, it comes from Smashing Magazine and t it lets you control how often your RSS widget should refresh. As with most WordPress hacks, all it takes is adding a snippet of code in your functions.php file.

Here’s the code that you have to copy and paste:

add_filter( 'wp_feed_cache_transient_lifetime', 
 create_function('$a', 'return 600;') );

The snippet uses WordPress’ add_filter() function, which accepts a filter hook, callback function and (optional) priority. The wp_feed_cache_transient_lifetime hook handles the feed’s refresh rate. The callback function is created on the fly using the create_function from PHP. The refresh rate in the above sample is 600 seconds, which is 10 minutes.

Hope some of you find this trick helpful. Cheers, everyone!

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