actionBegin(); echo "Class Yansongda\\Pay\\Pay: " . (class_exists('\\Yansongda\\Pay\\Pay') ? 'YES' : 'NO') . PHP_EOL; $cfg = get_addon_config('epay'); echo "epay version: " . ($cfg['version'] ?? 'not set') . PHP_EOL; echo "PHP version: " . PHP_VERSION . PHP_EOL;