static public function validateEmail($email)
{
$email = trim($email);
$email = str_replace(' ', '', $email);
$email = preg_replace('#[\;\#\n\r\*\'\"<>&\%\!\(\)\{\}\[\]\?\\/]#', '', $email);
if (preg_match('/^.+\@(\[?)[a-zA-Z0-9\-\.]+\.([a-zA-Z]{2,4}|[0-9]{1,4})(\]?)$/', $email)) return true;
else return false;
}