HTTP_REFERER

gistfile1.txt

public static function lower_links(){
        $options = get_option( 'purecharity_sponsorships_settings' );
        $go_back = htmlspecialchars($_SERVER['HTTP_REFERER']);


        $html = '';
        if(isset($options['show_back_link'])){
        $html .= '<a href="'. $go_back .'" class="back"><span> < </span>Back to all kids</a>';
        
          }
        
        if(isset($options['show_more_link']) && !empty($options['more_link'])){
            $html .= '<a href="'. $options['more_link'] .'" class="learn-more">Learn more about sponsorships <span> > </span></a>';
        }

        
        return $html;
    }