Převod textu na odkaz

<?php
  session_start();
require_once "../core/init.php"; 
if (isset($_POST['method']) === true && empty($_POST['method']) === false) {
   $chat        = new Chat();
   $method      = trim($_POST['method']); 
   
   if ($method === 'fetch') {
   
       $messages = $chat->fetchMessages();
        
       if (empty($messages) === true) {
          echo 'Momentálně zde nejsou žádné zprávy!'; 
       } else {
       
          foreach($messages as $message) {
          $textsmile = array(':-)', ':-(', ':-D', ':-P', ':-p', ';-)', ';)', ':D', 'X[]', 'B-]', ':-!', ':-/', 'blee', 'web', 'heslo'); $graphicsmile = array('
<img width="25" height="20" src="/chat/smileys/1.gif">', '
<img width="25" height="20" src="/chat/smileys/2.gif">', '
<img width="25" height="20" src="/chat/smileys/3.gif">' , '
<img width="25" height="20" src="/chat/smileys/4.gif">', '
<img width="25" height="20" src="/chat/smileys/4.gif">', '
<img width="25" height="20" src="/chat/smileys/5.gif">', '
<img width="25" height="20" src="/chat/smileys/5.gif">' , '
<img width="25" height="20" src="/chat/smileys/3.gif">' , '
<img width="25" height="20" src="/chat/smileys/6.gif">' , '
<img width="25" height="20" src="/chat/smileys/7.gif">' , '
<img width="25" height="20" src="/chat/smileys/8.gif">' , '
<img width="35" height="20" src="/chat/smileys/9.gif">' , '
<img width="35" height="20" src="/chat/smileys/10.gif">',
'......', '????'); 
$text = nl2br($message['message']); 
$text = str_replace($textsmile, $graphicsmile, $text);
$date = $message['timestamp'];          
          ?>           
<div  title="<?php  echo date('d.m.Y H:i', $date); ?> IP: <?php echo $message['ip']; ?>" class="message">                     
  <a onclick="Names('<?php echo $message['jmeno']; ?>:')" href="#" <?php if($message['admin'] == '1') echo 'style="color: #A52A2A; font-weight:bold; text-decoration: underline;" title="Administrátor"' ;ElseIf($message['admin'] == '0')echo'style="color:green" title="Uživatel"'; ?>><?php echo $message['jmeno']; ?></a> :           
  <?php echo $text; ?>            
</div>          
<?php
          }
       }
       
       } else if ($method === 'throw' && isset($_POST['message']) === true) {
          $message = trim($_POST['message']);
          if (empty($message) === false) {
               $chat->throwMessage($_SESSION['id'], $message); 
          }
           }    
         
}
?>

$text = preg_replace('#(^|\s)([a-z]+://([^\s\w/]?[\w/])*)#is', '\\1<a target="blank" href="\\2" title="\\2" class="koment"><strong>Odkaz>></strong></a>', $text);
$text = preg_replace('#(^|\s)((www|ftp)\.([^\s\w/]?[\w/])*)#is', '\\1<a target="blank" href="http://\\2" title="\\2" class="koment">Odkaz>></a>', $text);
$text = preg_replace('#(^|\s)(([a-z0-9._%+-]+)@(([.-]?[a-z0-9])*))#is', '\\1<a target="blank" href="mailto:\\2">Email</a>', $text);