You could simply use fetch_feed() that implements it’s own extension of SimplePie_Cache: $feed = new SimplePie(); … $feed->set_cache_class( ‘WP_Feed_Cache’ ); … $feed->set_feed_url( $url ); … $feed->set_cache_duration( apply_filters( ‘wp_feed_cache_transient_lifetime’, 12 * HOUR_IN_SECONDS, $url ) ); that caches the feeds with set_transient().
Install a page caching plugin and configure it for a very very long time. This have the advantage of you being able to post things when you decide that its time to do that again. Side note: abandoned blog creates actual noticeable load on a DB server? I find it hard to believe. front end … Read more
You call it asynchronously via the REST API. In a best case scenario, you want the entire HTML of a page cached (full page cache). Executing PHP inside that is not easily possible and that’s exactly the idea behind it So what you want is some JavaScript that talks to the REST API. The JavaScript … Read more
Transients API documentation formulates suggested usage as: long/expensive database queries or complex processed data Your case seems like a perfect fit for this description. On technical side you will need to concatenate your output into variable and put into transient, instead of displaying it.
You can’t “optimize” Jetpack. Look at the URL; it’s served from wordpress.com. You get what they offer from their servers.
Debug & Caching …simply doesn’t work. If you’d load a page (on a cached request) and doing all those funky things like checking if you’re logged in, if you’re using an administrator-role account, etc. than all this would be bypassed by the caching plugin. The cache gets applied to the resulting HTML page, not the … Read more
Caching can help with things like Google search ranking as the pages will load faster than a site without a cache system in place so it’s perhaps not a case of needing X number of visits. You mentioned that you had some problems… what were the problems?
if you want to flush the specific cache you can do that: the plugin has functions for that <?php flush_pgcache(); // Page cache flush_dbcache(); // Database cache flush_minify(); // Minify cache flush_all(); // All caches ?> and you just need to call it like this: <?php $w3_plugin_totalcache->flush_all(); ?>
Not tested, but if you need a quick and dirty way, you could put a script like this in your WordPress folder and call it each time: define( ‘WP_USE_THEMES’, false ); require(‘wp-blog-header.php’); global $wpdb; $wpdb->query( “DELETE FROM $wpdb->options WHERE option_name LIKE ‘%\_transient\_%'” ); Not to be used on a production server.
I can verify this is working for me and it looks much like the code you’ve provided. Perhaps there is somewhere else you are defining your script. Can you give it a new handle name to check (‘custom-xyz’)? Also, can you test the output of filemtime to see what it’s outputting? I’ve added a “v” … Read more