Allow Random Order in REST API Post Lists
Lets REST API clients request posts with orderby=rand, for example to show a few random articles in an app, which WordPress does not allow by default.
Snippet Library
Developer snippets for WordPress
Snippets for developers: debugging helpers, custom cron schedules, body classes, REST API tweaks and admin tools for checking hooks and queries. Building blocks for people who write code for WordPress every day.
Inspect the Main Query and Its SQL
Lets administrators add ?wpide_query=1 to a front-end URL to print the main query's variables, the SQL it ran and the number of posts found at the bottom of the page.
List Every Database Query on a Page for Administrators
When SAVEQUERIES is enabled, lets administrators add ?wpide_queries=1 to a front-end URL to see every SQL query of the page with its time and calling function, slowest first.
Log Slow Page Loads
Writes a line to the PHP error log for every request that takes longer than a set number of seconds, with the URL, time, memory and query count.
Query Count and Load Time in the Page Source
Adds an HTML comment at the bottom of front-end and admin pages with the number of database queries, generation time and peak memory. Visible to administrators only.
Rewrite Rules Viewer and URL Tester
Adds Tools > Rewrite Rules, listing every rewrite rule and showing which rule and query a URL path you enter would match, for debugging 404s and custom permalinks.
Show PHP Version, Memory and Queries in the Admin Footer
Replaces the WordPress version in the bottom right of admin screens with the PHP version, peak memory use and database query count of the current page.
Slow Database Query Warning for Admins
When SAVEQUERIES is enabled, lists the slowest database queries of the page with their duration and caller in an HTML comment visible to administrators.