PHP how to explode string into groups of 6 letters in array
<pre><code>$string = 'billiejeanisnotmylover';
$array = some_function($string,6);

$array[0] = 'billie'
$array[1] = 'jeanis'
$array[2] = 'notmyl'
$array[3] = 'over'
</code></pre>

<p>do you have an idea what some_function would be?</p>
