Fires after the available widgets and sidebars have loaded, before the admin footer.

Fires early before the Widgets administration screen loads, after scripts are enqueued.

Filters an HTTP status header.

Filters the HTML output of the li element in the post custom fields list.

Filters the theme modification, or ‘theme_mod’, value.

Filters the returned trackback URL.

Filters the URL to derive the post ID from.

Filters the trailing-slashed string, depending on whether the site is set to use trailing slashes.

Fires after all default WordPress widgets have been registered.

Filters the wp_mail() arguments.