# Change PHP and routing settings

Set the PHP version, PHP workers and limits of a PHP site, control how page addresses are routed, and use Laravel's maintenance mode and Artisan from the dashboard.

## Before you start

- A PHP site or static website in Nuvlo.
- Permission to manage sites in your Nuvlo account.

## Step 1: Open the PHP or Routing tab

Open the site from [Sites](https://app.nuvlo.dev/dashboard/sites). PHP sites have a **PHP** tab, static websites a **Routing** tab.

## Step 2: Change the settings

For a static website, the **Routing** card has two switches: **Single-page app**, which sends every address to `index.html`, and **Links without .html**.

For a PHP site, the **PHP settings** card has these fields:

| Field | What it does |
| --- | --- |
| **PHP version** | The PHP version the site runs on. |
| **PHP worker mode** | **On demand** starts workers per request and uses the least memory when idle. **Dynamic** keeps a few workers warm. **Static** always runs the maximum. |
| **PHP workers** | Maximum simultaneous requests, 1–200. Default 5. |
| **Memory limit (MB)** | Memory one request may use, 64–8192. Default 256. |
| **Upload size (MB)** | Largest file upload, 1–2048. Default 64. |
| **Max execution time (s)** | Time limit per request, 10–3600 seconds. Default 60. |

Below the fields are switches for the deploy steps: **Send every page through index.php**, **Links without .html** (when the previous one is off), **Install PHP packages** (runs `composer install`), and **Build CSS and JavaScript**. Laravel sites also get **Update the database on deploy**, **Speed up Laravel** (`php artisan optimize`), **Scheduled tasks** and **Horizon**, which keeps Laravel Horizon running and needs `laravel/horizon` in the project.

![The PHP settings card of a Laravel site with the PHP version, worker mode, limits and the deploy switches](https://app.nuvlo.dev/docs/shots/site-runtime-settings--php-settings.webp)

## Step 3: Save the settings

Click **Save PHP settings** or **Save routing**. On a deployed site the change is applied to the server right away: **Saved and applied to the server**. Before the first deploy it reads **Saved. The next deploy applies it.**

## Runtime controls for PHP sites

The **Runtime** card at the top of the **PHP** tab shows whether PHP is answering requests and how many background processes are running. Click **Refresh** to check again.

- **Reload PHP** reloads the site's PHP processes.
- **Restart processes** restarts queue workers, Horizon and daemons. See [Run background processes and cron jobs](https://app.nuvlo.dev/docs/site-processes).
- **Turn on maintenance mode** (Laravel) shows visitors Laravel's maintenance page until you click **Bring site online**.
- **Artisan** (Laravel) runs a command such as `migrate:status` in the live release as the site's user. Click **Run command** to see its output. **Clear caches** clears Laravel's caches.

![The Runtime card of a Laravel site with PHP status, background processes, maintenance mode and the Artisan field](https://app.nuvlo.dev/docs/shots/site-runtime-settings--runtime.webp)

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Source: https://app.nuvlo.dev/docs/site-runtime-settings