foreachloop.php

<?php 

$count = 1;
foreach( $items as $item ) 
{
    if ($count%5 == 1)
    {  
         echo '<div class="5-results-wrapper">';
    }
    echo '<p>Some item</p>';
    if ($count%5 == 0)
    {
        echo "</div>";
    }
    $count++;
}
//This is to ensure there is no open div if the number of elements is not a multiple of 5
if ($count%5 != 1) echo "</div>"; 

?>