ONA12 random session sorter

ona12.php

<?php
$json_url = 'ona12.json';
$json_string = file_get_contents($json_url);
$json_decoded = json_decode($json_string, true);
$items = $json_decoded;
$items_random = shuffle($items);
$i = 1; 
echo '<h1>ONA12 sessions sorted randomly</h1>';
echo '<a class="large button nice" href="http://www.reddit.com/r/digitaljournalism">Full list</a>';
echo '<ul>';
foreach($items as $value) {
    echo '<li><a href="'.$value['ideaURL'].'"><span>'.$i.'</span> ';
    echo $value['sessionTitle'];
    echo '</a></li>';
    $i++;
}
echo '</ul>';
?>