Show tags and an associative id

Question

I have a problem...I want to show with an echo the tag_name an the id: My array:

 Array
 (
 [id] => 15
 [title] => This is the first article
 [content] => 

This is the first articleThis is the first articleThis is the first articleThis is the    first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first articleThis is the first article

[date] => 2014-05-11 12:05:00
[views] => 0
[smallimage] => Hydrangeas-11.jpg
[largeimage] => Hydrangeas-11.jpg
[tags] => first tag,last tag,second tag
[id_tag] => 15,16,17
)

I tried, but when I link I get in brower: localhost/blogCI/tag/15,16,17 but I need to show localhost/blogCI/tag/15 or localhost/blogCI/tag/16 My code:

<div class="news-content-title">
            <? echo $main_info['title'];?>
        </div>
        <div class="news-content-content">
            <? echo $main_info['content'];?>
        </div>


        <?php foreach($main_info as $n):?>
                        <?php $tags = explode(",", $n['tags']); ?>
                        <?php $id_tag = explode(",", $n['id_tag']); ?>

        <?php endforeach ?>
        <?php for ($i=0;$i<count($id_tag);$i++): ?>

                    <a href="<?php echo base_url('tag/'.$main_info['id_tag'])?>"><?php echo $main_info['tags'] ?></a>

        <?php endfor; ?>

Help me please

Answer 1

I'm not particularly sure about the syntax as I haven't worked with codeigniter but you could try this:

<?php
      $tags['tags'] = explode(",",$main_info['tags']);
      $tags['id_tag'] = explode(",",$main_info['id_tag']);

         foreach($tags['tags'] as $k=>$v): ?>
           <a href="<?php echo base_url('tag/'.$tags['id_tag'][$k])?>"><?php echo $v ?></a>
         <?php endforeach ?>