实现emlog侧边栏标签组件的标签随机显示

$tag_cache = $CACHE->readCache('tags');

shuffle($tag_cache);
$tag_cache = array_slice($tag_cache,0,10);

<?php 
function widget_tag($title){
	global $CACHE;
	$tag_cache = $CACHE->readCache('tags');
	shuffle($tag_cache);
	$tag_cache = array_slice($tag_cache,0,10); //10是要调用的标签数量    
?>
	<section class="widget divTags">
		<h3><?php echo $title; ?></h3>
	<ul>
	<?php foreach($tag_cache as $value): ?>
		<li><a href="<?php echo Url::tag($value['tagurl']); ?>" title="<?php echo $value['tagname']; ?>"><?php echo $value['tagname']; ?></a></li>
	<?php endforeach; ?>
	</ul>
	</section>
<?php 
}
?>