Question

I need some help. I have a section that displays keywords “tags”:

<?=str_replace(",",",",$line["m_tags"])?>

The code above looks like this

Tags: KEYWORD1, KEYWORD2, KEYWORD3

All I’m trying to do is have each individual KEYWORD be a hyperlink to link back to the main page.
Any help would be appreciated.

Answer 1

The code you posted does nothing, it replaces , with ,.
You can do this with regular expressions, but here is a different method:

$output = '';
$tmp    = explode(",",$line['m_tags']); /* convert to array */

foreach($tmp as $tag)
    $output .= '<a href="index.php">'.$tag.'</a>, '; /* put link in output */

echo substr($output,0,-2); /* echo output without the last , */

Shorter alternative as Felix Kling pointed out:

$tmp    = explode(",",$line['m_tags']); /* convert to array */

foreach($tmp as $key => $tag)
    $tmp[$key] = '<a href="index.php">'.$tag.'</a>'; /* put link back in tmp */

echo implode(",",$tmp);