对每个用户字段进行净化。

如果上下文是 “原始”，那么用户对象或数组将得到最小的int字段的净化处理。

function sanitize_user_object($user, $context = 'display') {
	_deprecated_function( __FUNCTION__, '3.3.0' );

	if ( is_object($user) ) {
		if ( !isset($user->ID) )
			$user->ID = 0;
		if ( ! ( $user instanceof WP_User ) ) {
			$vars = get_object_vars($user);
			foreach ( array_keys($vars) as $field ) {
				if ( is_string($user->$field) || is_numeric($user->$field) )
					$user->$field = sanitize_user_field($field, $user->$field, $user->ID, $context);
			}
		}
		$user->filter = $context;
	} else {
		if ( !isset($user['ID']) )
			$user['ID'] = 0;
		foreach ( array_keys($user) as $field )
			$user[$field] = sanitize_user_field($field, $user[$field], $user['ID'], $context);
		$user['filter'] = $context;
	}

	return $user;
}