WordPress at a glance
action is not described

widgets.php action-hook . WP 1.0

This action is documented in wp-admin/includes/ajax-actions.php

Usage

add_action( 'widgets.php', 'action_function_name_7592' );
function action_function_name_7592(){
	// action...
}

Where the hook is called

WP_Customize_Widgets::customize_controls_init()
widgets.php
WP_Customize_Widgets::wp_ajax_update_widget()
widgets.php
wp_ajax_save_widget()
widgets.php
wp_ajax_delete_inactive_widgets()
widgets.php
wp-includes/class-wp-customize-widgets.php 337
do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
wp-includes/class-wp-customize-widgets.php 1548
do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
wp-admin/includes/ajax-actions.php 2295
do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores
wp-admin/includes/ajax-actions.php 2400
do_action( 'widgets.php' ); // phpcs:ignore WordPress.NamingConventions.ValidHookName.UseUnderscores

Where in WP core the hook is used WordPress

Usage not found.