How to display the current selected language by the user in the OpenCart module?

Question

opencart

Good afternoon. Please tell me how to display the current installed client language in LiqPay modules from OpenCart 2.3.

$xml  = '<request>';
    $xml .= '	<order_id>' . $this->session->data['order_id'] . '</order_id>';
    $xml .= '	<language>'. '$$$' .'</language>';

I need it to be displayed instead of $$$
- 'en' if the language is set to English
and 'ru' - if the language is set to Russian

Answer 1

$this->session->data['language']
$this->config->get['config_language']
But not only
$this->language->get('code')