Smarty模板电子邮件表单不通过电子邮件发

Question

我被要求查看其他人创建的网站上的联系表单，该表单显然已停止工作。它是一个PHP表单，我找到了一个TPL文件。经过一番研究，我发现一个TPL文件是由Smarty Template Engine创建的。我根本不熟悉这个。我作为用户测试了表单，在前端，它似乎提交没有错误。但是，网站所有者没有收到表单中的电子邮件。

我在服务器上的文件中查了一下，无法找到电子邮件收件人的定义位置。所以，我想先问一下......电子邮件收件人定义在哪里？

谢谢。

编辑（添加contact.php）：

    <?php
    ob_start();
    define ("INCLUDE_PATH", "./");
    require_once INCLUDE_PATH."lib/inc.php";

    Content();       ////////////   For page content 

    if($_REQUEST['mode'] == "contact"){
        if(checkData()) {
            send_data();
        }
        else 
        {
            dispmiddle();
        }
    }
    else
    {
        dispmiddle();
    }

    ob_end_flush();

    function dispmiddle(){
        require_once INCLUDE_PATH."lib/common.php";
        // for service 

        $_SESSION['checkCode'] = makeRandomWord(5);

        $smarty->assign('textname',isset($_REQUEST['textname']) ? prepareRequest($_REQUEST['textname'],1) : prepareRequest($_REQUEST['textname'],1));

        $smarty->assign('textemail',isset($_REQUEST['textemail']) ? prepareRequest($_REQUEST['textemail'],1) : prepareRequest($_REQUEST['textemail'],1));

    $smarty->assign('textcontactno',isset($_REQUEST['textcontactno']) ? prepareRequest($_REQUEST['textcontactno'],1) : prepareRequest($_REQUEST['textcontactno'],1));

    $smarty->assign('textcomment1',isset($_REQUEST['textcomment1']) ? prepareRequest($_REQUEST['textcomment1'],1) : prepareRequest($_REQUEST['textcomment1'],1));

    $smarty->assign('textcompany',isset($_REQUEST['textcompany']) ? prepareRequest($_REQUEST['textcompany'],1) : prepareRequest($_REQUEST['textcompany'],1));

    foreach($GLOBALS as $key=>$val){
            if(strstr($key, "_err")){
                $smarty->assign($key, $val); 
            }
        }

        $smarty->display("contactus.tpl");
    }
    function checkData() {
        //include("securimage.php");

        $errCounter=0;
        if(trim($_POST['textname'] == "")) 
        {
            $errCounter++;  
            $GLOBALS['textname_err'] = "Please Enter Your Name";
        } 

        if(trim($_POST['textcontactno'] == "")) 
        {
            $errCounter++;  
            $GLOBALS['textcontactno_err'] = "Please Enter Phone";

        } 


        if($errCounter>0){
            return false;
        }
        else{
            return true;
        }
    }

    function send_data(){
        require_once INCLUDE_PATH."lib/common.php";
        $obj = new Contact();

        $obj->name = $_REQUEST['textname'];
        $obj->email = $_REQUEST['textemail'];
        $obj->phone = $_REQUEST['textcontactno'];
        $obj->company = $_REQUEST['textcompany'];
        $obj->enquiry = $_REQUEST['textcomment1'];
        $obj->contacttype = "General";

        $chk = $obj->addContact();

        if($chk == true)
        {   

            $msg = "Thank you for contacting us.";
            $smarty->assign('msg', $msg);

        }   
        else 
        {
            $msg = "There is some problem. Please try again.";
            $smarty->assign('msg', $msg);

        } 
         $smarty->display("contactus.tpl");
    }

 ?>