Alphaindex für Kategorie-Link

blog_links.php

<?php
/** 
* @package Joomla.Site 
* @subpackage com_content 
* 
* @copyright Copyright (C) 2005 - 2015 Open Source Matters, Inc. All rights reserved. 
* @license GNU General Public License version 2 or later; see LICENSE.txt 
*/ 

defined('_JEXEC') or die;?> 

<?php $arr = array(); 
	$items = $this->link_items; 
	foreach ($items as $key => $value) { 
		//echo $value['name']; 
		if(!in_array($value->title[0], $arr)){ 
			array_push($arr, $value->title[0]); 
		} 
	} 
	echo '<div class="index-zeile">';
	foreach($arr as $letter) { 
		echo '<a class="btn" data-link="letter-'.$letter.'" href="#letter-'.$letter.'" />'.$letter.'</a>'; 
	} 
	echo "</div>"; 
	echo 
	'<ul class="accordion">'; 
	foreach ($arr as $key => $group) { 
		echo 
		'<li id="letter-'.$group.'" class="letter-anchor" > 
			<div class="panel panel-default"> 
				<div class="panel-heading"> 
					<h4 class="panel-title">
						<a href="#'.$group.'" data-toggle="collapse">'.$group.'</a>
					</h4> 
				</div>'; 
		echo 
		'<div id="'.$group.'" data-link="letter-'.$group.'" class="panel-collapse collapse">
			<ul class="list-group" >'; 
			foreach ($items as $key => $value) { 
				if($value->title[0] == $group):?> 
					<li class="list-group-item">
						<div>
							<h4><a href="<?php echo JRoute::_(ContentHelperRoute::getArticleRoute($value->slug, $value->catid, $value->language)); ?>">
							<?php echo $value->title; ?></a>
							</h4>
						</div> 
						<div> 
							<div class="readmore-btn">
								<a class="read-more" href="<?php echo JRoute::_(ContentHelperRoute::getArticleRoute($value->slug, $value->catid, $value->language)); ?>"> Mehr darüber</a>
							</div> 
						</div> 
					</li> 
				<?php endif; 
			} 
			echo 
			'</ul>'; 
			echo 
			'</div>
		</li>'; 
	} 
	echo 
	'</ul>'; 
?>