public static function tabs($atts, $content = null) { self::$tabsTitles = array(); self::$tabsActive = true; $content = do_shortcode($content); $output = '<ul class="nav nav-tabs">'; if (count(self::$tabsTitles) > 0) { $i = 0; foreach (self::$tabsTitles as $id => $title) { $output .= '<li' . ($i == 0 ? ' class="active"' : '') . '><a href="#tab' . esc_attr($id) . '" data-toggle="tab">' . $title . '</a></li>'; $i++; } } $output .= '</ul><div class="tab-content">' . $content . '</div>'; return $output; }