How can PHP be used to load or activate a plugin in Joomla for generating a QR code?

To load or activate a plugin in Joomla for generating a QR code using PHP, you can use Joomla's plugin system to enable the QR code plugin. This can be done programmatically by accessing Joomla's plugin manager and enabling the QR code plugin.

// Load Joomla's framework
define('_JEXEC', 1);
define('JPATH_BASE', __DIR__);
require_once JPATH_BASE . '/includes/defines.php';
require_once JPATH_BASE . '/includes/framework.php';

// Get the plugin manager
$pluginManager = \Joomla\CMS\Plugin\PluginHelper::getPluginManager();

// Enable the QR code plugin
$pluginManager->enable('system', 'qr_code_plugin');