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in Technique[技术] by (71.8m points)

How add class='active' to html menu with php

I want to put my html navigation in a separate php file so when I need to edit it, I only have to edit it once. The problem starts when I want to add the class active to the active page.

I've got three pages and one common file.

common.php :

<?php 
$nav = <<<EOD
   <div id="nav">
        <ul>
           <li><a <? if($page == 'one'): ?> class="active"<? endif ?> href="index.php">Tab1</a>/</li>
           <li><a href="two.php">Tab2</a></li>
           <li><a href="three.php">Tab3</a></li>
       </ul>
    </div>
EOD;
?>

index.php : All three pages are identical except their $page is different on each page.

  <?php
     $page = 'one';      
     require_once('common.php');
    ?>
    <html>
       <head></head>
       <body>
          <?php echo $nav; ?>
       </body>
    </html>

This simply won't work unless I put my nav on each page, but then the whole purpose of separating the nav from all pages is ruined.

Is what I want to accomplish even possible? What am I doing wrong?

Thanks

EDIT: When doing this, the php code inside the li don't seem to run, it's just being printed as if it was html

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1 Reply

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by (71.8m points)

why don't you do it like this:

in the pages:

<html>
   <head></head>
   <body>
      <?php $page = 'one'; include('navigation.php'); ?>
   </body>
</html>

in the navigation.php

<div id="nav">
   <ul>
      <li>
          <a <?php echo ($page == 'one') ? "class='active'" : ""; ?> 
                 href="index1.php">Tab1</a>/</li>
      <li>
          <a <?php echo ($page == 'two') ? "class='active'" : ""; ?> 
                  href="index2.php">Tab2</a>/</li>
      <li>
          <a <?php echo ($page == 'three') ? "class='active'" : ""; ?> 
                  href="index3.php">Tab3</a>/</li>
   </ul>
</div>

You will actually be able to control where in the page you are putting the navigation and what parameters you are passing to it.

Later edit: fixed syntax error.


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