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How to fix PHP installation appears to be missing the MySQL extension which is required by WordPress?


Hi everyone,

I hope you're all doing well. I'm currently trying to set up a WordPress website, but I've run into an issue with the PHP installation. Specifically, I am getting the following error message:

"PHP installation appears to be missing the MySQL extension which is required by WordPress."

I understand that WordPress requires the MySQL extension in order to function properly, but I'm not sure how to go about fixing this issue. I have basic knowledge of PHP, but I'm definitely not an expert.

Could someone please guide me through the steps to resolve this problem? Any help would be greatly appreciated.

Thanks in advance!

All Replies


User 2:

Hi there!

I encountered a similar problem when setting up my WordPress site, and I managed to fix it by updating my PHP installation. Here's what I did:

1. Start by checking which PHP version you have installed. You can do this by creating a new PHP file (e.g., info.php) in your website's root directory and adding the following code:


Save the file and access it through your web browser by visiting your website URL followed by `/info.php` (e.g., www.mywebsite.com/info.php). Look for the "PHP Version" section to identify the version you're currently using.

2. Once you know your PHP version, go to the official PHP website (https://www.php.net/downloads.php) and download the corresponding PHP zip archive for your operating system and architecture.

3. Extract the contents of the zip file to a temporary folder. Make sure to preserve the folder structure.

4. Next, navigate to your PHP installation directory and locate the "ext" folder. Copy the following files from the temporary folder you created earlier to the "ext" folder: "php_mysql.dll" and "php_mysqli.dll".

5. Open your PHP installation directory and find the "php.ini" file. Open it with a text editor and search for the following lines:


Remove the semicolons (;) from the beginning of those lines to uncomment them. Save the changes.

6. Finally, restart your web server to apply the updates.

Now, when you run your WordPress installation again, the MySQL extension should be recognized and the error message should no longer appear.

I hope this solution works for you as well. If you have any further questions or need assistance, feel free to ask. Good luck with your WordPress website!


User 3:

Hello everyone,

I encountered a similar issue when working with WordPress and the MySQL extension. Thankfully, I found an alternative solution that might work for you if the previous methods didn't solve the problem.

Instead of using the MySQL extension, you could try using the MySQLi extension, which is an improved version of MySQL extension and is recommended by WordPress. Here's what you can do:

1. First, make sure you have the MySQLi extension enabled in your PHP configuration file (php.ini). Open the file and search for the line ";extension=mysqli" (without quotes). Remove the semicolon (;) at the beginning of the line to uncomment it. Save the changes and restart your web server.

2. After enabling the MySQLi extension, you'll need to update your WordPress configuration to use the MySQLi functions instead of the MySQL functions. To do this, open your website's wp-config.php file and add the following line of code right before the line that says "/* That's all, stop editing! Happy blogging. */":

define('WP_USE_EXT_MYSQL', false);

Save the file.

3. Finally, try accessing your WordPress website again. The issue should now be resolved, and you should no longer see the missing MySQL extension error.

By switching to the MySQLi extension and updating the WordPress configuration, you can ensure compatibility and functionality without relying on the outdated MySQL extension.

I hope this solution helps you fix the problem. If you have any further questions or need additional assistance, feel free to ask. Good luck with your WordPress setup!

Best regards.


User 1:

Hey there,

I've had this same issue before when setting up a WordPress website. Luckily, there are a couple of things you can try to resolve it.

First, check if the MySQL extension is enabled in your PHP configuration file (php.ini). Locate the file (usually in the PHP installation directory) and open it with a text editor. Look for the line ";extension=mysqli" (without quotes) or ";extension=mysql" (again without quotes). Remove the semicolon (;) at the beginning of the line to uncomment it. Save the file and restart your web server to apply the changes.

If that doesn't work, you might need to install the MySQL extension manually. Depending on your PHP version and operating system, the steps may vary. If you're using a Linux-based system, you can try running the following command in the terminal:

sudo apt-get install php-mysql

For Windows users, you might need to edit your PHP installation's php.ini file as mentioned earlier, or download the MySQL extension DLL file and add it to your PHP extensions directory.

Remember to restart your web server after any changes have been made to the PHP configuration or extensions.

I hope this helps you resolve the issue. Let me know if you have any further questions or if you need clarification on any of the steps.

Good luck!

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