How Do I Fix the \'The mysqli extension is missing\' Error in PHP?

PHP - The mysqli extension is missing. Please check your PHP configuration

When encountering the error "The mysqli extension is missing. Please check your PHP configuration," it's crucial to address the issue to allow proper interaction with the MySQL database.

To resolve this, follow these steps:

1. Locate the active php.ini file: Determine the location of the php.ini file being used by PHP. This file typically resides in your PHP installation directory.
2. Uncomment the mysqli extension: Open the php.ini file and search for the line that reads "extension=mysqli." Make sure the semicolon (;) before this line is removed, enabling the extension.

3. Update the extension path: In some cases, the mysqli extension may not be correctly configured to load its DLL (Dynamic Link Library) file. Replace the existing line with a specific path to the DLL file. For example:

   extension="C:\php\ext\php_mysqli.dll"

4. Restart Apache: After updating the php.ini file, restart the Apache web server. This will ensure the new settings are applied. You can do this by running the command sudo service apache2 restart (for Linux systems) or net stop apache2 && net start apache2 (for Windows systems).

By following these steps, you should be able to resolve the missing mysqli extension error and establish a connection to MySQL.

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