Fatal error: Call to undefined function mysqli_connect()

Question

For 2 days now I\'m trying to solve this, but unfortunately no result. Let me tell you my story about the problem. I\'ve bulid an application on a site, and the application

Answer 1

If you host the server yourself, and that server happens to be Apache, you can also get this error even if you have uncommented extension=php_mysqli.dll in php.ini.

You also need to tell Apache where to find php.ini by using the PHPIniDir directive in Apache's httpd.conf

AddHandler application/x-httpd-php .php
PHPIniDir "<path-to-folder-where-php-ini-lives>"

Answer 2

Simply do it

sudo apt install php-mysqli

It works perfectly and it is version independent