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./othercms/wordpress-6.0/wp-admin/options-head.php
<?php
/**
 * WordPress Options Header.
 *
 * Displays updated message, if updated variable is part of the URL query.
 *
 * @package WordPress
 * @subpackage Administration
 */

wp_reset_vars( array( 'action' ) );

if ( isset(
$_GET['updated'] ) && isset( $_GET['page'] ) ) {
   
// For back-compat with plugins that don't use the Settings API and just set updated=1 in the redirect.
   
add_settings_error( 'general', 'settings_updated', __( 'Settings saved.' ), 'success' );
}

settings_errors();