# Change PHP settings for WordPress

Switch a WordPress site to another PHP version, raise its memory, upload and time limits, and turn on the debug log.

## Before you start

- A WordPress site in Nuvlo that isn’t deploying.
- Permission to manage sites.

## Step 1: Open the PHP card

Open the site and click **Settings**. The **PHP** card is at the top.

![PHP card with PHP version, memory limit, largest upload, time limit and the Debug log switch](https://app.nuvlo.dev/docs/shots/wordpress-php-settings--card.webp)

## Step 2: Change the settings

| Field | Accepted values |
| --- | --- |
| **PHP version** | 8.1 to 8.5. **PHP 8.4 (recommended)**. 8.5 is Nginx only. 8.1 no longer gets updates. |
| **Memory limit (MB)** | 64 to 8192 |
| **Largest upload (MB)** | 1 to 2048 |
| **Time limit per request (seconds)** | 10 to 3600 |

Under **Advanced**, **Worker mode** (**Dynamic**, **On demand** or **Static**) and **Requests handled at once** (2 to 200) set how many requests PHP handles in parallel. Raise the second only if the server has memory to spare.

## Step 3: Save and restart PHP

Before switching the PHP version, check that your plugins and theme support it, and take a [backup](https://app.nuvlo.dev/docs/back-up-a-site).

Click **Save and restart PHP**. A new PHP version takes about a minute to switch. Other changes reload right away.

## Step 4: Turn on the debug log

Turn on **Debug log** to write PHP errors to `wp-content/debug.log`. The file isn’t public and visitors never see the errors. Switching it restarts the site’s PHP.

Read the file in the [file manager](https://app.nuvlo.dev/docs/file-manager). Turn the debug log off when you’re done.

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Source: https://app.nuvlo.dev/docs/wordpress-php-settings