title: PHP string concatenation problem?
body: <pre><code>function formatUpdate($tweet,$dt,$picture,$username)
  {
      if(is_string($dt)) $dt=strtotime($dt);
  
      $tweet=htmlspecialchars(stripslashes($tweet));
  
  
         $at = "@" . $username;
  
  
  
  
      return'
      &lt;li&gt;
      &lt;a href="nano.com/' . $username . '"&gt;&lt;img class="avatar" src="images/' . $picture . '" width="48" height="48" alt="avatar" /&gt;&lt;/a&gt;
      &lt;div class="tweetTxt"&gt;
      &lt;strong&gt;&lt;a href="nano.com/' . $username . '"&gt;' . $username . '&lt;/a&gt;&lt;/strong&gt; '. preg_replace('/((?:http|https|ftp):\/\/(?:[A-Z0-9][A-Z0-9_-]*(?:\.[A-Z0-9][A-Z0-9_-]*)+):?(\d+)?\/?[^\s\"\']+)/i','&lt;a href="$1" rel="nofollow" target="blank"&gt;$1&lt;/a&gt;',$tweet).'
      &lt;div class="date"&gt;'.relativeTime($dt).'&lt;/div&gt; &lt;a class ="reply"  href="?replyto=' echo $at;   '"&gt;reply&lt;/a&gt;
      &lt;/div&gt;
      &lt;div class="clear"&gt;&lt;/div&gt;
      &lt;/li&gt;';
  
  }
  </code></pre>