在函数中添加 URL 链接

这可能是一个简单的解决方案，但我是新手。 我有一些来自以前开发人员的代码，我被要求编辑发送的电子邮件的文本。 我尝试使用常规的 href 标签，但这不起作用。 在下面的示例中，是否有添加 URL 的特定方法？ 这是准备开始行。 单击应具有超链接。 谢谢！！

function send_info_kit(){
        if($_POST):
        $to = mysql_real_escape_string($_POST['email_info']);
        $q = "INSERT INTO rog_info_requesters(`email`) VALUES('{$to}')";
        $r = mysql_query($q) or die(mysql_error());
        print $to;
        $from ='support@reachingourgoal.org';
        $name = 'Reaching Our Goal';
        $subject='Info kit you requested';
        $message=nl2br('Information on America’s best fundraising program for sports teams and 
        school groups is attached.
Finally, a modern process that generates thousands of dollars in profit and 
takes just minutes to launch.
A few reasons why www.rechingourgoal.org is the right choice:
- Takes minutes
- No selling    
- 80% Profits   
- Online tracking
- We do the work
Ready to get started now?  http://www.reachingourgoal.org"Click!
Text ROG to 9192835123. Get clued in on amazing results and success tips.
We are helping people like you do amazing things every day.
Reaching Our Goal
www.ReachingOurGoal.org
');
        $cc='';
        $bcc='junk@reachingourgoal.org,jon@mysportsdreams.com';
        //$attach='http://www.reachingourgoal.org/assets/images/ReachingOurGoalInfoKit.pdf';
        $file = FCPATH .'/assets/images/ROGFreeInfo.pdf';
        if(file_exists($file)):
        {
            echo "File exists. Path ok: " . $file;
        }
        else:
        {
            echo "Cannot find file: " . $file;
        }
        endif;
        $this->member->send_info($to,$from,$name ,$subject,$message,$cc,$bcc,$file);
        endif;
    }