class AsoCode {
    public static function getInstance() {
        // Return an instance of the class
        // Implementation here...
    }

    public function getPopupCode($adId, $options) {
        // Implementation here...
    }
}
<br />
<b>Fatal error</b>:  Uncaught Error: Class &quot;AsoCode&quot; not found in /htdocs/index.php:6
Stack trace:
#0 {main}
  thrown in <b>/htdocs/index.php</b> on line <b>6</b><br />