<?php

$reg_exUrl = "/(http|https|ftp|ftps)\:\/\/[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(\/\S*)?/";

$text = $this->utility->safe($action['value']);

if(preg_match($reg_exUrl, $text, $url)) {

       echo preg_replace($reg_exUrl, "<a href="{$url[0]}">{$url[0]}</a> ", $text);
} else {

       echo $text;
}
?>