SimpleHistory::settings_page_output PHP Method

    function settings_page_output()
    {
        $arr_settings_tabs = $this->getSettingsTabs();
        ?>
		<div class="wrap">

			<h1 class="SimpleHistoryPageHeadline">
				<div class="dashicons dashicons-backup SimpleHistoryPageHeadline__icon"></div>
				<?php 
        _e("Simple History Settings", "simple-history");
        ?>
			</h1>

			<?php 
        $active_tab = isset($_GET["selected-tab"]) ? $_GET["selected-tab"] : "settings";
        $settings_base_url = menu_page_url(SimpleHistory::SETTINGS_MENU_SLUG, 0);
        ?>

			<h2 class="nav-tab-wrapper">
				<?php 
        foreach ($arr_settings_tabs as $one_tab) {
            $tab_slug = $one_tab["slug"];
            printf('<a href="%3$s" class="nav-tab %4$s">%1$s</a>', $one_tab["name"], $tab_slug, esc_url(add_query_arg("selected-tab", $tab_slug, $settings_base_url)), $active_tab == $tab_slug ? "nav-tab-active" : "");
        }
        ?>
			</h2>

			<?php 
        // Output contents for selected tab
        $arr_active_tab = wp_filter_object_list($arr_settings_tabs, array("slug" => $active_tab));
        $arr_active_tab = current($arr_active_tab);
        // We must have found an active tab and it must have a callable function
        if (!$arr_active_tab || !is_callable($arr_active_tab["function"])) {
            wp_die(__("No valid callback found", "simple-history"));
        }
        $args = array("arr_active_tab" => $arr_active_tab);
        call_user_func_array($arr_active_tab["function"], $args);
        ?>

		</div>
		<?php 
    }