This function’s access is marked private. This means it is not intended for use by plugin or theme developers, only in other core functions. It is listed here for completeness.

_wp_sidebars_changed()

Handle sidebars config after theme change

Source

File: wp-includes/widgets.php 

function _wp_sidebars_changed() {
	global $sidebars_widgets;

	if ( ! is_array( $sidebars_widgets ) )
		$sidebars_widgets = wp_get_sidebars_widgets();

	retrieve_widgets(true);
}

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Changelog

Changelog
Version Description
3.3.0 Introduced.