I recently upgraded PHP5.X to PHP7.3 on my Pi 3 and also moved to Raspbian Buster from Jessie.

Now I get this message when I try to open the port 80 where I could earlier see my Wordpress site.

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

I use Apache and MariaDB and these are working. I installed Php7.3-mysql as well.

PHP is working correctly. I created a test.php file with this content <?php echo “hello world”; ?> and it works on the browser.

Please help.


3 Answers 3


With Raspbian Buster you will find the needed sql extension in its repository with apt list *php*sql*. Just install it with:

rpi ~$ sudo apt install php7.1-mysql
  • I updated PHP to 7.3 now and installed php7.3-mysql. However, not getting the the issue fixed.
    – Kangkan
    Apr 20, 2020 at 19:18

You need to update WordPress itself to PHP7. The old MySQL plugin doesn't support PHP7, and you should use MySQLi or PDO_MySQL instead.

  • thanks. Can you provide some pointers on how to do? I downloaded the latest Wordpress, but it too is not working.
    – Kangkan
    Apr 22, 2020 at 7:19

So, how I resolved it!

I removed Wordpress, all bits of php (purge php*) and then started from scratch after a reboot. It worked fine.

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