# PHP Versions & Extensions Management

Multi-PHP makes it easy to switch, configure, and manage different PHP environments for your projects.

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## 🔩 Managing PHP Versions

Navigate to `Settings > PHP Versions` to download, select, and manage multiple PHP versions.

- **Available Versions**: List of all PHP versions available for download.
- **Downloaded Versions**: Versions already present on your system.
- **Default Version**: The global PHP version typically used for CLI (e.g., in a terminal).
- **Restart Delay**: Multi-PHP automatically restarts PHP-FPM when settings change.

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## 🛠️ PHP Extension Manager

Every PHP version in Multi-PHP comes with its own extension manager. You don't need to manually edit `php.ini` for common tasks anymore.

### Using the Manager:
1.  **Select Extension**: Find your desired extension (e.g., `mysql`, `gd`, `zip`).
2.  **Toggle**: Click to enable or disable the extension.
3.  **Apply**: Multi-PHP will update the `php.ini` file for you and restart the version's service automatically.

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## 📝 Raw Editing of `php.ini`

If you need fine-grained control over your PHP configuration, use the built-in **RAW EDITOR**.

1.  **Open Editor**: Access the editor button in the extensions window.
2.  **Save & Restart**: Click "Save and Restart" to apply changes immediately.
3.  **Search & Replace**: Use the search functionality to find specific variables like `memory_limit` or `max_execution_time`.

> [!TIP]
> You can also use the **"Server Tuning"** tool under the "Tools" menu to quickly adjust common PHP performance settings without manually editing code files.

### 📖 Next Steps
- [Learn how to manage MariaDB Databases](./database.md)
- [Configure Web Servers](./web-servers.md)
- [System Integration](./settings.md)