register_sidebar_widget( string|int $name, callable $output_callback, string $classname = '', mixed $params )

2127function register_sidebar_widget($name, $output_callback, $classname = '', ...$params) {2128	_deprecated_function( __FUNCTION__, '2.8.0', 'wp_register_sidebar_widget()' );2129	// Compat.2130	if ( is_array( $name ) ) {2131		if ( count( $name ) === 3 ) {2132			$name = sprintf( $name[0], $name[2] );2133		} else {2134			$name = $name[0];2135		}2136	}2137 2138	$id      = sanitize_title( $name );2139	$options = array();2140	if ( ! empty( $classname ) && is_string( $classname ) ) {2141		$options['classname'] = $classname;2142	}2143 2144	wp_register_sidebar_widget( $id, $name, $output_callback, $options, ...$params );2145}