get_charset_collate(); $table = $wpdb->prefix . 'fbs_notification_users'; if ($wpdb->get_var($wpdb->prepare("SHOW TABLES LIKE %s", $table)) != $table || $isForced) { $sql = "CREATE TABLE $table ( `id` INT UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT, `notification_id` INT UNSIGNED NULL, `user_id` BIGINT UNSIGNED NOT NULL, `marked_read_at` TIMESTAMP NULL, `created_at` TIMESTAMP NULL, `updated_at` TIMESTAMP NULL, KEY `notification_id` (`notification_id`), KEY `user_id` (`user_id`) ) $charsetCollate;"; require_once ABSPATH . 'wp-admin/includes/upgrade.php'; dbDelta($sql); } } }