The 'do_mu_upgrade' PHP filter in WordPress allows for seamless upgrades of WordPress Multisite installations. This filter can be used to customize the upgrade process and ensure that all sites within…

The 'expiration_of_transient_{$transient}' PHP filter in WordPress allows developers to modify the expiration time of transient data.

The WordPress 'expiration_of_site_transient_{$transient}' PHP filter allows developers to customize the expiration time of site transients, improving site performance and reducing server load.

The 'comment_cookie_lifetime' PHP filter in WordPress allows developers to easily adjust the expiration time of comment cookies, improving user experience and website security.

The 'date_rewrite_rules' PHP filter in WordPress allows developers to customize the URL structure for date-based archives. By using this filter, you can create more user-friendly URLs and improve the overall…

The 'day_link' PHP filter in WordPress allows developers to customize the URLs of daily archive pages. By using this filter, developers can create more user-friendly and SEO-friendly URLs for their…

The WordPress 'cron_schedules' PHP filter allows developers to create custom intervals for scheduled tasks.

The 'check_comment_flood' action in WordPress is a PHP function that prevents comment flooding by checking user activity.

The 'auth_cookie' PHP filter is a powerful tool for WordPress developers to enhance user authentication and security.