WP_Customize_Manager::update_stashed_theme_mod_settings( array $inactive_theme_mod_settings ): array|false

Source

protected function update_stashed_theme_mod_settings( $inactive_theme_mod_settings ) {
	$stashed_theme_mod_settings = get_option( 'customize_stashed_theme_mods' );
	if ( empty( $stashed_theme_mod_settings ) ) {
		$stashed_theme_mod_settings = array();
	}

	// Delete any stashed theme mods for the active theme since they would have been loaded and saved upon activation.
	unset( $stashed_theme_mod_settings[ $this->get_stylesheet() ] );

	// Merge inactive theme mods with the stashed theme mod settings.
	foreach ( $inactive_theme_mod_settings as $stylesheet => $theme_mod_settings ) {
		if ( ! isset( $stashed_theme_mod_settings[ $stylesheet ] ) ) {
			$stashed_theme_mod_settings[ $stylesheet ] = array();
		}

		$stashed_theme_mod_settings[ $stylesheet ] = array_merge(
			$stashed_theme_mod_settings[ $stylesheet ],
			$theme_mod_settings
		);
	}

	$autoload = false;
	$result   = update_option( 'customize_stashed_theme_mods', $stashed_theme_mod_settings, $autoload );
	if ( ! $result ) {
		return false;
	}
	return $stashed_theme_mod_settings;
}

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