Question

I am struggling to insert comma separated after each item, if more than one item.

I have all values as they should, only missing the comma.

$result = $html->link($tags[$cv], array(‘controller’=>’postTags’,’action’ => ‘view’, $post_tags[$ck]), array(‘title’=>’Vis artikler under ‘.$tags[$cv],’escape’ => false));
echo $result = substr($result,0,-2);

This output correct links without comma: test1test2test3 if multiple => should be; test1, test2, test3

Also if only 1 item => output should be test1 (no comma).

So, code as is, does output correct links, but no comma! I am not sure how to proceed, any suggestions?

Tried implode (full-code using cake 1.3);

$ci = 0;
    $post_tags = explode(",", $content['Post']['tag_id']);
        if(!empty($post_tags)){
            foreach($post_tags as $ck => $cv) { 
                if(isset($tags[$cv])){
                    $ci = $ci+1;
                    $result = $html->link($tags[$cv], array('controller'=>'postTags','action' => 'view', $post_tags[$ck]), array('title'=>'Vis artikler under '.$tags[$cv],'escape' => false));
                    //pr($result);
                    $commaSeparated = implode(',',$result);
                    echo $commaSeparated;
                }
            }
        } else {
            echo '';
        }

Give me error.. ;//

pr($post_tags);

Array
(
    [0] => 3
    [1] => 1
    [2] => 2
)

pr($tags);

Array
(
    [1] => Tag1
    [2] => Tag2
    [3] => Tag3
    [4] => Tag4
)

---

Answer 1

UPDATE

// get only the tags assigned to the post
$postTagKeys = array_flip($post_tags);
$tags = array_intersect_key($tags, $postTagKeys);

// ok lets make the links:
$tagLinks = array();

foreach($tags as $tagId => $tagName) {
   $tagLinks[] = $html->link(
       $tagName,
       array('controller'=>'postTags','action' => 'view', $tagId),
       array('title'=>'Vis artikler under '.$tagName,'escape' => false)

   );
}

//$tagLinks is now an array of html <a> tags linking to individual tags
// so to ouput the list we do

echo implode(', ', $tagLinks);

---

If you have the categories as an array just use implode:

$cats = array('test1','test2','test3');
$cats2 = array('test1');

echo implode(', ',$cats);
echo implode(', ',$cats2);

So using your example code:

         foreach($post_tags as $ck => $cv) { 
            if(isset($tags[$cv])){
                $ci = $ci+1;
                $taglist = implode(', ', $tags[$cv]);
                $result = $html->link($taglist, array(
                  'controller'=>'postTags',
                  'action' => 'view', 
                  $post_tags[$ck]  // are you sure you want to pass the array here and not just the array key?
                ), array(
                  'title'=>'Vis artikler under '.$taglist,
                  'escape' => false)
                );

                echo $result;
            }
        }