function send_mail($vars){
global $send_to, $send_cc;
global $subject;
global $attachment_enabled;
global $REMOTE_ADDR;
global $HTTP_POST_FILES;
$files = array(); //files (veld namen) voor bijlage in email
if (count($HTTP_POST_FILES) && $attachment_enabled){
$files = array_keys($HTTP_POST_FILES);
}
// bouw email
$date_time = date('d-m-Y H:i:s');
$mime_delimiter = md5(time());
$fields = _build_fields($vars);
$mail = <<<EOF
Dit is een samenvatting van de reactie
if (preg_match('/^(.+?)_num$/i', $k, $m) && strlen($v) && !is_numeric($v)){
$field_name = ucfirst($m[1]);
$errors[] = "Veld <b>$field_name</b> moet getal of cijfers bevatten of laat leeg";
}
if (preg_match('/^(.+?)_reqnum$/i', $k, $m) && !is_numeric($v)){
$field_name = ucfirst($m[1]);
$errors[] = "Veld <b>$field_name</b> moet getal of cijfers bevatten of laat leeg";
}
}
//controleer gebruiker
if (is_array($referrers) && count($referrers)){
$ref = parse_url($HTTP_REFERER);
$host = $ref['host'];
$host_found = 0;
foreach ($referrers as $r){
if (strstr($host, $r))
$host_found++;
}
if (!$host_found){
$errors[] = "Onbekende gebruiker: <b>$host</b>";
}
}
return $errors;
}