---
title: "My website stopped working after a PHP change"
url: "https://inleed.com/helpcenter/website-broken-after-php-change"
language: "en"
updated: "2026-11-06"
category: "Web hosting"
type: "felsokning"
---

# My website stopped working after a PHP change

The quickest fix is to [switch back to the version you had](https://inleed.com/helpcenter/change-php-version). Your website then works again, and you can troubleshoot without stress.

## Common causes

### 1. A PHP extension is missing

**Check:** Does your website or WordPress say that an extension is missing, for example `mysqli` or `imagick`?

**What to do:** Extensions apply per PHP version. Turn on the extension for the new version under **Extensions**.

[Enable PHP extensions on your hosting](https://inleed.com/helpcenter/enable-php-extensions)

### 2. A WordPress plugin or theme causes errors

**Check:** Is the plugin or theme too old for the new version?

**What to do:** Update it, or deactivate it.

[Disable a WordPress plugin from the File Manager](https://inleed.com/helpcenter/disable-wordpress-plugin)

### 3. Settings like the memory limit have been reset

**Check:** Do the PHP settings have different values than before you changed version?

**What to do:** PHP settings apply per version. Set them again for the new version under **Options**.

[Change PHP settings for your website](https://inleed.com/helpcenter/change-php-settings)

## Good to know

- The error log shows exactly which file causes the error.  
  [View your website’s error log](https://inleed.com/helpcenter/view-error-log)

## Related guides

- [Change the PHP version for your website](https://inleed.com/helpcenter/change-php-version)
- [WordPress shows a critical error or a blank page](https://inleed.com/helpcenter/wordpress-critical-error)
- [Does Inleed patch PHP security holes?](https://inleed.com/helpcenter/does-inleed-patch-php)