Bootstrap Scaffolding in php's loop

Question

How do I make scaffolding if I would like to show grids next to each other. My actual codes

<div class="span8">
<div class="row-fluid">
<?php foreach($items as $item) : ?>
   <div class="span6">
      <?= $item ?>
   </div>
<?php endforeach; ?>
</div>
</div>

grids are showing like

-------------------
1box       2box
-------------------
3box
-------------------
4box
-------------------
5box
-------------------

I would like to show

-------------------
1box       2box
-------------------
3box       4box
-------------------
5box
-------------------

Answer 1

   <div class="span8 mutli-column">
       <?php   
         $c = 0;
         foreach( $items as $item ):

            //Needs Break Boolean, true if counter at second column
            $b = (( ++$c % 2 == 0 ) ? true : false );

            if ( $b ) 
                echo '<div class="row-fluid">'; ?>

               <div class="span6">
                    <?php echo $item; ?>
               </div>

           <?php
            if ( $b ) 
                echo '</div>';

       endforeach; ?>
  </div>

With use of % Modulus, you can calculate every second iteration, thus break into a new .row-fluid row, to get yourself into a HTML structure like below:

<div class="span8 mutli-column">
    <div class="row-fluid">
        <div class="span6">1</div>
        <div class="span6">2</div>
    </div>
    <div class="row-fluid">
        <div class="span6">3</div>
        <div class="span6">4</div>
    </div>
    <div class="row-fluid">
        <div class="span6">5</div>
        <div class="span6">6</div>
    </div>
    <div class="row-fluid">
        <div class="span6">7</div>
        <div class="span6">8</div>
    </div>
</div>

Here's a Fiddle constructed with the above: