I am trying to encode only synopsis from following code

```
<?php
<li><a href="?page=<?php echo base64_encode("("synopsis")&lang=hn");?>" <?php if($page == 'synopsis'){?>class="active"<?}?>>Dec</a></li>
?>

```

but when I try to encode it shows error like

> 
> Parse error: syntax error, unexpected T\_STRING in /var/www/html/header.php on line 33 
> 
> 
> 

Please, help me with this syntax error. I am not able to solve it

Any help will be appreciated