从之前的会话文件.php中打开Html中的Php变量

I'm creating a Server Side php Website application. In my first page , the whole code is php , and I've set

$_SESSION["lang"] = 'lang.en.php';   
$_SESSION["lang"] = 'lang.it.php';

When I change flag, I change a variable :

 if (Trim($_SESSION["lang"])=='')
      {
      include 'lang.it.php';
      }
 if (Trim($_SESSION["lang"])=='lang.en.php')
      {
      include 'lang.en.php';
      }
 if (Trim($_SESSION["lang"])=='lang.it.php')
      {
      include 'lang.it.php';
      }

I have the following problem

My second page .php is 50% html and 50% php because in html I put a simple dropdown menu.

My Question is : How can I pass to html my variables from another php page without using Jquery?

<li> <a class="active" href="home.php"><?php $home?></a> </li>

Variable $Home is stored in - lang.it.php -

How di I access to my variables?

P.s. I don't want to pass all Menu's variable in the session because I think is crazy to do..

EDIT -- html

<head>
<link href="Css/Menu.css" rel="stylesheet" type="text/css">
<script>
</head>
<body>
<center ><div id="header"><center >
 <ul>
  <li><a class="active" href="home.php">Home</a></li>
  <li><a href="download.php">Area Download</a></li>
  <li class="dropdown">
    <a href="javascript:void(0)" class="dropbtn" 
            onclick="myFunction()">Men&#249;</a>
    <div class="dropdown-content" id="myDropdown">
      <a href="/Page1.php">VARIABLE 1 HERE</a>
      <a href="/Page2.php">VARIABLE 2 HERE</a>
       <a href="/Page3.php">VARIABLE 3 HERE</a>
    </div>
    <li><a href="logout.php">Logout</a></li>
  </li>
</ul>
</div>
<center ><div id="Realbody"><center >
<center ><div id="Footer"><center >
</html>
<?php
require_once("rpcl/rpcl.inc.php");
//Includes
use_unit("forms.inc.php");
use_unit("extctrls.inc.php");
use_unit("stdctrls.inc.php");
use_unit("styles.inc.php");
include 'parameters.php';
//Class definition
class PaginaDownload extends Page
{
    public $Label1 = null;
    public $LoginCss = null;
    function PaginaDownloadShow($sender, $params)
    {
   if ((empty($_SESSION["name"])) || (empty($_SESSION["user"])))
        {
        header('Location: \index.php');
        }
    }
}

global $application;
global $PaginaDownload;
//Creates the form
$PaginaDownload=new PaginaDownload($application);
//Read from resource file
$PaginaDownload->loadResource(__FILE__);
//Shows the form
$PaginaDownload->show();
?>

I've to replace VARIABLE 1 , 2 , 3 with my variable on Lang.php

 <li><a class="active" href="home.php">Home</a></li>
  <li><a class="active" href="home.php"><?php $home?> </a></li>

That's my try :

//Includes
use_unit("forms.inc.php");
use_unit("extctrls.inc.php");
use_unit("stdctrls.inc.php");
use_unit("styles.inc.php");
use_unit("Zend/zauth.inc.php");
include '/parameters.php';
if (Trim($_SESSION["lang"])=='') { include 'lang.it.php'; }
else
include Trim($_SESSION["lang"]);
//Class definition

and here my lang file

<?php
/*
------------------
Language: English
------------------
*/
//Login Page #1/X
$title_page_Login = 'Login';
$Err_1_Login = 'Login Credentials Incorrect';
$Err_2_Login = 'Not Found User :';
$Err_3_Login = 'Database Offline';
$Err_4_Login = 'Insert User & Password';
$Err_5_Login = 'Need User';
$Err_6_Login = 'Need Password';
$req_user = 'Insert Username';
$req_pass = 'Insert Password';
$Bt_Label = 'Sign In';
//-------------------
//Home
$home = 'Home';
?>