How to write such a change in a foreach loop

How this change is written in the Foreach Loop
This post was last edited by albb_num1 on 2014-10-19 21:34:12

Output of the same, but the style is not the same,
First output
Topic 1
A second output
Topic 2| (No Label and followed by a|）
And so on
I only wrote the first one, the second one will not write, I also know to use judgment, but do not know how to write

 
   
      
 
   
      
 
   One && $value [' navigation_id ']<27) {?>
      Topic 1
      
 
   
      
 
   
      
 
   

------to solve the idea----------------------
Can be easily referenced under the following:

$array = Array (1,2,3,4,5,6,7,8,9,10);
        $num = 1;
        foreach ($array as $key = = $value) {
            if ($num%2==0) {
                Echo ' title '. $value. '
------to solve the idea----------------------
';
            }else{
                Echo ' title '. $value. '  ;
            }
            $num + +;
        }

For:

