Set active state on navigation dynamically

Question

I seem to run into this problem frequently and can never find a solution. I have a Wordpress site with a top navigation. Since this is in my header.php, and used on all page

Answer 1

You could use preg_replace() to add class="active" like this:

ob_start();
echo '

  
Page 1
  
Page 2
  
';
$output = ob_get_clean();
$pattern = '~
~';
$replacement = '
';
echo preg_replace($pattern, $replacement, $output);