optimization - Read For Learn

Should I use wp_cache in my plugin to make it faster?

If you check the source code for get_option, you’ll see that it already uses wp_cache_get() and wp_cache_add() under the hood. So without looking deeper into the implementation, I would presume that two calls of get_option(‘foo’); would only trigger a single db call (and cache the result). Hence, in this case E) would apply: caching is … Read more

How to optimize wp_delete_post() function, or why it is so slow

WordPress UPDATE queries on MySQL database stuck

SQL: How to find all attachments that are not used in any posts/pages/custom_post_types

What you seek isn’t truly possible. You can get sort of close, but you cannot definitively say if an attachment is or isn’t in use. We can get somewhere close to a solution, but to do this we will need to process each attachment individually. So first, get a list of all the IDs of … Read more

Can mediaelement-and-play core JS be dequeued?

It’s for the audio and video players used by the and shortcodes, as well as the Audio and Video widgets, but not the Audio and Video blocks. The script will only be enqueued if you are using the shortcodes or widgets.

Google Page Speed

Will memcached improve performance with WP Super Cache already running?

In the most simple terms, memcached/redis is for caching things like options and database values. WP Super Cache is meant for serving static HTML files, instead of loading PHP, but with that said, it will still have to run PHP code to generate those files. So yes, if you have the option of using memcached … Read more