Is it feasible for a beginner to make basic adjustments to a Nextcloud server using PHP?

Yes, it is feasible for a beginner to make basic adjustments to a Nextcloud server using PHP. By accessing the Nextcloud server's file structure and editing PHP files, beginners can make simple changes such as modifying themes, adding custom functionality, or adjusting configuration settings.

// Example code snippet for modifying a Nextcloud server's configuration settings
$config = \OC::$server->getConfig();
$config->setSystemValue('my_setting', 'my_value');