Bitrix Modules

Identifier and Namespace

• Identifier: <vendor>.<module> (lowercase, no _, no digit at start).
• Installer class: <vendor>_<module> (dot → _).
• Namespace: \<Vendor>\<Module>\... (dot → \, CamelCase) for partner modules with a dot in the id.
• One-word module id (no partner prefix), e.g. mymodule: installer class mymodule, PSR-4 namespace \Bitrix\Mymodule (Loader uses Bitrix\ + ucfirst($moduleName)), not \Mymodule.

Quick Creation

php bitrix/bitrix.php make:module vendor.module

Since main 25.900. On older versions, scaffold files manually.

make:module creates a minimal skeleton only:

• install/index.php, install/version.php
• install/mysql/install.sql, install/mysql/uninstall.sql (empty stubs)
• default_option.php
• lang/ru/install/index.php

It does not create .settings.php, /lib/, routes, or controllers. Add those yourself or via further make:* / dev:module-skeleton.

Minimal Structure

/local/modules/vendor.module/
├── install/
│   ├── index.php
│   ├── version.php
│   └── mysql/                   # optional SQL stubs from make:module
├── lang/ru/install/index.php
├── default_option.php
├── lib/                         # PSR-4, Vendor\Module\... (add manually)
├── views/                       # PHP views for renderView() in controllers
├── routes/                      # Module route files — require from /local/routes/web.php
├── .settings.php                # controllers, services, console (add manually)
└── include.php                  # optional, for registerNamespace/registerAutoLoadClasses

Module Routing

Routing is global-only. The kernel loads route files listed in global routing.config from /local/routes/ and /bitrix/routes/ only.

A routing section in the module's .settings.php is not auto-loaded. Connect module routes by require from /local/routes/web.php:

// /local/routes/web.php
return function (\Bitrix\Main\Routing\RoutingConfigurator $routes): void {
    $moduleRoutes = $_SERVER['DOCUMENT_ROOT'] . '/local/modules/vendor.module/routes/web.php';
    if (is_file($moduleRoutes))
    {
        (require $moduleRoutes)($routes);
    }
};

install/version.php

<?php
$arModuleVersion = [
    'VERSION' => '1.0.0',
    'VERSION_DATE' => '2026-04-16 12:00:00',
];

install/index.php

Inherit from CModule, implement DoInstall/DoUninstall. Base template:

<?php

use Bitrix\Main\Localization\Loc;
use Bitrix\Main\ModuleManager;
use Bitrix\Main\EventManager;

Loc::loadMessages(__FILE__);

final class vendor_module extends CModule
{
    public $MODULE_ID = 'vendor.module';
    public $MODULE_VERSION;
    public $MODULE_VERSION_DATE;
    public $MODULE_NAME;
    public $MODULE_DESCRIPTION;
    public $PARTNER_NAME = 'Vendor';
    public $PARTNER_URI = 'https://vendor.example.com';

    public function __construct()
    {
        $arModuleVersion = [];
        include __DIR__ . '/version.php';

        $this->MODULE_VERSION = $arModuleVersion['VERSION'] ?? '';
        $this->MODULE_VERSION_DATE = $arModuleVersion['VERSION_DATE'] ?? '';

        $this->MODULE_NAME = (string)Loc::getMessage('VENDOR_MODULE_NAME');
        $this->MODULE_DESCRIPTION = (string)Loc::getMessage('VENDOR_MODULE_DESCRIPTION');
    }

    public function DoInstall(): void
    {
        global $USER, $APPLICATION;

        if (!$USER->IsAdmin())
        {
            $APPLICATION->ThrowException('Access denied');
            return;
        }

        ModuleManager::registerModule($this->MODULE_ID);

        $this->installDb();
        $this->installEvents();
        $this->installAgents();
        $this->installFiles();
    }

    public function DoUninstall(): void
    {
        global $USER;
        if (!$USER->IsAdmin()) return;

        $this->uninstallAgents();
        $this->uninstallEvents();
        $this->uninstallDb();
        $this->uninstallFiles();

        ModuleManager::unRegisterModule($this->MODULE_ID);
    }

    private function installDb(): void
    {
        // Table creation via ORM Entity:
        // \Vendor\Module\Model\PostTable::getEntity()->createDbTable();
    }

    private function uninstallDb(): void
    {
        // Application::getConnection()->dropTable(PostTable::getTableName());
    }

    private function installEvents(): void
    {
        EventManager::getInstance()->registerEventHandler(
            fromModule: 'main',
            eventType: 'OnAfterUserAdd',
            toModuleId: $this->MODULE_ID,
            toClass: \Vendor\Module\Internals\Integration\Main\EventHandler\OnAfterUserAddHandler::class,
            toMethod: 'handle',
        );
    }

    private function uninstallEvents(): void
    {
        EventManager::getInstance()->unRegisterEventHandler(
            fromModule: 'main',
            eventType: 'OnAfterUserAdd',
            toModuleId: $this->MODULE_ID,
            toClass: \Vendor\Module\Internals\Integration\Main\EventHandler\OnAfterUserAddHandler::class,
            toMethod: 'handle',
        );
    }

    private function installAgents(): void
    {
        \CAgent::AddAgent(
            \Vendor\Module\Cli\Agent\QueueAgent::class . '::run();',
            $this->MODULE_ID,
            'N',
            300,
            '',
            'Y',
            '',
            100,
        );
    }

    private function uninstallAgents(): void
    {
        \CAgent::RemoveModuleAgents($this->MODULE_ID);
    }

    private function installFiles(): void
    {
        CopyDirFiles(
            __DIR__ . '/components',
            $_SERVER['DOCUMENT_ROOT'] . '/local/components',
            true,
            true,
        );
    }

    private function uninstallFiles(): void
    {
        DeleteDirFilesEx('/local/components/vendor');
    }
}

Language Files

/local/modules/vendor.module/lang/ru/install/index.php (created by make:module):

<?php
$MESS['VENDOR_MODULE_NAME'] = 'Vendor Module';
$MESS['VENDOR_MODULE_DESCRIPTION'] = 'Module description';

Add lang/en/ (and other locales) as needed for multi-language admin UI.

Lang file paths must mirror the source file path relative to the module root: /install/index.php → /lang/<code>/install/index.php, /admin/my_page.php → /lang/<code>/admin/my_page.php. MODULE_NAME / MODULE_DESCRIPTION are read from these phrases in the installer constructor and shown in Admin → Settings → Product settings → Modules; if the lang file path or phrase codes don't match, the module appears there with an empty name/description.

DB Tables

Do not use raw SQL for table creation. Describe the entity in /lib/Model/PostTable.php and create the table via ORM:

\Bitrix\Main\Loader::includeModule('vendor.module');
\Vendor\Module\Model\PostTable::getEntity()->createDbTable();

For deletion:

\Bitrix\Main\Application::getConnection()->dropTable(PostTable::getTableName());

Module Options (options.php)

Module options (Option + default_option.php) are for permanent settings. For TTL runtime state vs cache vs Option, see skill bitrix-storage.

If you need a settings page in Admin Panel (Settings → Module Settings → Vendor Module):

<?php
/** @var CMain $APPLICATION */
/** @var string $mid */ // module id

use Bitrix\Main\Config\Option;
use Bitrix\Main\Localization\Loc;

$options = [
    ['api_key', Loc::getMessage('VENDOR_API_KEY'), '', ['text', 40]],
    ['debug_mode', Loc::getMessage('VENDOR_DEBUG'), 'N', ['checkbox', 'Y']],
];

if ($_SERVER['REQUEST_METHOD'] === 'POST' && check_bitrix_sessid())
{
    foreach ($options as $opt)
    {
        $val = $_POST[$opt[0]] ?? $opt[2];
        Option::set($mid, $opt[0], $val);
    }
}

// ... display via CAdminTabControl

PSR-4 Autoloading

Nothing needs to be registered manually in include.php if:

1. Module is in /local/modules/vendor.module/.
2. Classes are in /lib/.
3. Namespace follows \Vendor\Module\... (or \Bitrix\Mymodule\... for a one-word id).

Bitrix Loader handles this automatically when includeModule is called.

Checklist

• Module identifier follows vendor.module format (or one-word → \Bitrix\... namespace).
• After make:module, .settings.php / lib/ added if needed (generator is minimal).
• Module routes are required from /local/routes/web.php — not expected from module .settings.php routing.
• DoInstall/DoUninstall are implemented and idempotent.
• Event handlers and agents are registered upon installation and removed upon uninstallation.
• DB tables are managed via ORM or SqlHelper (DDL).
• Language files exist where needed (lang/ru/ from generator; add lang/en/ etc.).
• Services and controllers are registered in .settings.php.
• No hardcoded strings in index.php (use Loc).
• Module is compatible with PSR-4.
• Files are copied to /local/, not /bitrix/.