How to Fix "Your PHP Installation Appears to Be Missing the MySQL Extension Which Is Required by WordPress."

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How to Fix “Your PHP Installation Appears to Be Missing the MySQL Extension Which Is Required by WordPress.”

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September 21st, 2023

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WordPress is one of the most flexible and reliable content management systems (CMSs). Still, you may sometimes run into problems when you use it. One error says, “Your PHP Fix installation doesn’t seem to have the MySQL extension that WordPress needs.”

The good news is that this is a pretty easy problem, and there are a few quick and easy ways to do so. Once you know what the mistake means and what causes it most of the time, you’ll be better able to fix it and ensure it doesn’t happen again. 

Here, we’ll talk about the WordPress MySQL extension error and some of the most common reasons why it happens. Then, we’ll show you how to fix the problem and how to make sure it doesn’t happen again. 

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Guide to Fix PHP Fix:

Now that you know what the message means and what might have caused it, let’s look at how to fix it. 

1- Fix WordPress:

Fix WordPress

As we said, this error message could happen if you use an older version of WordPress, like 3.9 or smaller. So, one of the first things you should do to fix it is to use the newest WordPress Core version

If you’re using the latest version of PHP and The App Founders, which we’ll discuss next, this is probably the trouble. You can check for an update by visiting your admin area and Dashboard > Updates.

  • Check for an update if you can still log into your WordPress account.
  • Click on Dashboard and then Updates.
  • Click on Dashboard and then Updates.
  • If you have the choice, click Update All.
  • If you can’t get into your WordPress site, you must use an FTP client to update the Software.

Get the file for WordPress:

  • Take file apart.
  • Use FTP to get into the server for your website.
  • Go to the folder called “wp-content.”
  • Click the right mouse button on the plugins folder and rename it “plugins.hold.” This will turn off your apps for now.
  • Delete the folders called wp-includes and wp-admin.
  • Upload the new wp-includes and wp-admin folders you took from file earlier.
  • Upload each file from the new wp-content folder to your wp-content folder. This will PHP Fix and replace the files that are already there. Only delete the files in your wp-content folder that are being replaced by new ones.
  • Put all your new files in the public_html folder, the root path for WordPress.
  • Change the “plugins. file back to the “plugins.

2- Upgrade Your Plugins:

Upgrade Your Plugins

Like old core software, outdated plugins can cause PHP to give the MySQL extension error because they don’t work well with PHP.

If you can still log in to your WordPress homepage, you can check to ensure that all your plugins are running the most recent versions.

If you can’t get into your WordPress site, you must use an FTP client to update outdated plugins.

  • Get file for the app.
  • Take file apart.
  • Use FTP to get into the server for your website.
  • Go to the folder called “wp-content.”
  • Click on the folder for tools.
  • Delete the folder that contains the Software you want to update.
  • Find the folder with the plugins you downloaded and removed, right-click it, then click “Upload.”

3- Make Sure to install the MySQL Plugin:

Make Sure to install the MySQL Plugin

Even if your WordPress version is up-to-date, you should ensure the MySQL extension is loaded and turned on. It’s possible that the Operating System (OS) you’re using didn’t come with the extension, so you’ll have to add it yourself. 

Return to the phpinfo.php file you made in the last step to check if it’s installed. Then, go to the part for MySQL or MySQL. The version of the MySQL extension will be shown next to the Client API field if it is loaded.

However, the MySQL extension is not loaded if this field is blank or not there. How you install it will depend on how your host works. You can find out more in the PHP fix startup guide.

  • If your host uses cPanel, you can turn on the extension by going to your cPanel dashboard, clicking on Software, and selecting Select PHP Version.
  • Here, choose the most current version of PHP and then check the boxes for MySQL and MySQL. Save your changes, and then go back to your site to see if the mistake message remains.
  • Ask your web service for assistance if you need help installing the MySQL extension. You can always ask them to help you with this process.

4- Check Your Version of PHP:

Check Your Version of PHP

Once you know that the core of WordPress is up-to-date, you should check which version of PHP your server is using.

The best way to do this is to go to Tools > Site Health from the Dashboard of your WordPress site.

If you can’t get into your WordPress account, you can use a File Transfer Protocol (FTP) client like FileZilla to connect to your server and check your PHP version. You can also use the File Manager tool if your web company uses cPanel. 

Please make a new file in the top directory of your site (/public_html) and call it phpinfo.php. You can PHP fix with your FTP client or your File Manager. Then, open the file and copy and paste the code below:

  • When you’re done, save the file. Open a new tab and navigate to “” Ensure that “” has been replaced with your domain name.
  • Now, you should see a page that tells you how PHP is set up on your site.
  • At the top of the screen, it should say which version of PHP your server is using. If it starts with 7 or 8, the error message is probably not caused by an old version of PHP. 
  • Suppose you are using PHP 5. X, consider changing it. 

How to Stop The Mysql Extension Problem From Happening?

Preventing the “Your PHP fix installation appears to be missing the MySQL extension required by WordPress” error from reoccurring is ensuring consistency, keeping up with updates, and adhering to best practices. 

Here are some proactive steps to take:

1. Regularly Update Your Server Software:

Update Your Server Software

  • Update PHP: Ensure you are running a recommended version of PHP for WordPress. Often, updated versions bring performance improvements and remove deprecated functions and extensions.
  • Update MySQL: Regularly update the MySQL server to ensure compatibility.

2. Implement a Stable Hosting Environment:

Stable Hosting Environment

  • Choose a Reliable Host: Opt for a hosting provider specializing in WordPress, as they will typically handle many technical aspects for you.
  • Managed WordPress Hosting: Consider switching to managed WordPress hosting, specifically optimized for WordPress. They handle technical management aspects, ensuring that the PHP and MySQL extensions required are always in place.

3. Monitor PHP Extensions:

Monitor PHP Extensions

  • Use tools or plugins that notify you when crucial PHP extensions are missing or disabled.

4. Backup Regularly:

Backup Regularly

  • Always keep regular backups of your website. In case of misconfigurations, a recent backup can be a lifesaver, allowing you to revert to a previous state.

5. Limit Backend Access:

Limit Backend Access

  • Only give server and backend access to trusted individuals or developers who understand the implications of the changes they make.

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Vital Aspects Unraveled


Fixing PHP MySQL Extension Error in WordPress Key Steps to Resolve the Error Preventive Measures to Avoid Recurrence
Update WordPress Core Update WordPress to Latest Version Regular Software Updates
Using FTP for Manual Update Update Plugins for Compatibility Stable Hosting Environment
Replacing Core Folders via FTP Upgrading Outdated Plugins via FTP Managed WordPress Hosting
Check MySQL Extension Check MySQL Extension and Installation Monitoring PHP Extensions
Check and Change PHP Version Review and Change PHP Version if Old Regular Backups for Safety
Understanding the Error Cause Understand the Cause and Error Check Limited Backend Access
Ensure Latest PHP and MySQL Versions Confirm PHP and MySQL Updates Restrict Access to Trusted Individuals



The MySQL extension issue is just as unpleasant as any other WordPress mistake and could negatively affect your site’s user experience. To get your PHP fix site back up and running as soon as possible with minimal impact on the user experience, follow the steps outlined above. 

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