http://3c-ole.co.kr/#filter=.contact 

위사이트 폼메일에서 작성하고 전송 하면

이런 메세지가 뜹니다

Fatal error: Call to undefined function: filter_var() in /home/hosting_users/autumnlight/www/contact.php on line 9

카페24 호스팅쪽에 문의 햇더니 php5.2 버전에서 되는거라 하시는데

어떻게 하는지 잘 모르겠어서 문의드립니다!

소스 코드는 아래와 같습니다

<?php

if(!$_POST) exit;

function tommus_email_validate($email) { return filter_var($email, FILTER_VALIDATE_EMAIL) && preg_match('/@.+\./', $email); }

$name = $_POST['name']; $email = $_POST['email']; $comments = $_POST['comments'];

if(trim($name) == '') {

 exit('<div class="error_message">You must enter your name.</div>');

} else if(trim($name) == 'Name *') {

 exit('<div class="error_message">You must enter your name.</div>');

} else if(trim($email) == '') {

 exit('<div class="error_message">Please enter a valid email address.</div>');

} else if(!tommus_email_validate($email)) {

 exit('<div class="error_message">You have entered an invalid e-mail address.</div>');

} else if(trim($comments) == 'Comment *') {

 exit('<div class="error_message">Please enter your message.</div>');

} else if(trim($comments) == '') {

 exit('<div class="error_message">Please enter your message.</div>');
 
} else if( strpos($comments, 'href') !== false ) {

 exit('<div class="error_message">Attention! Please leave links as plain text.</div>');
 
} else if( strpos($comments, '[url') !== false ) {

 exit('<div class="error_message">Attention! Please leave links as plain text.</div>');

} if(get_magic_quotes_gpc()) { $comments = stripslashes($comments); }

$address = 'sample@naver.com';

$e_subject = 'You\'ve been contacted by ' . $name . '.';

$e_body = "You have been contacted by $name from your contact form, their additional message is as follows." . "\r\n" . "\r\n";

$e_content = "\"$comments\"" . "\r\n" . "\r\n";

$e_reply = "You can contact $name via email, $email";

$msg = wordwrap( $e_body . $e_content . $e_reply, 70 );

$headers = "From: $email" . "\r\n";

$headers .= "Reply-To: $email" . "\r\n";

$headers .= "MIME-Version: 1.0" . "\r\n";

$headers .= "Content-type: text/plain; charset=utf-8" . "\r\n";

$headers .= "Content-Transfer-Encoding: quoted-printable" . "\r\n";

if(mail($address, $e_subject, $msg, $headers)) { echo "<fieldset><div id='success_page'><h4>Email Sent Successfully.</h4><p>감사합니다! $name, 님의 메세지가 전달되었습니다.</p></div></fieldset>"; }