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Path: r9ni58868pbh.0!nntp.google.com!news1.google.com!postnews.google.com!2g2000yqp.googlegroups.com!not-for-mail
From: Hans Lommeuld <hanslomme...@gmail.com>
Newsgroups: dk.edb.internet.webdesign.serverside.php
Subject: email_validering
Date: Sun, 15 Apr 2012 04:40:31 -0700 (PDT)
Organization: http://groups.google.com
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Message-ID: <46792c09-079d-4029-bcfe-d6b101c57b07@2g2000yqp.googlegroups.com>
NNTP-Posting-Host: 2.104.252.223
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Complaints-To: groups-abuse@google.com
Injection-Info: 2g2000yqp.googlegroups.com; posting-host=2.104.252.223; posting-account=qsWZDQoAAADE_XBI8oiwhIlLMdyDVouL
User-Agent: G2/1.0
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Hvad mangler jeg for at f=E5 valideringen til at virke?
Skal jeg anvende noget header(Location) i tilf=E6lde af invalid email!?
I s=E5 fald hvor?

Hilsen

Claus
Alias: "Hans Lommeuld"

$email=3D$_POST['email'];

if (isset($email)){
function validEmail($email)
{
   $isValid =3D true;
   $atIndex =3D strrpos($email, "@");
   if (is_bool($atIndex) && !$atIndex)
   {
      $isValid =3D false;
   }
   else
   {
      $domain =3D substr($email, $atIndex+1);
      $local =3D substr($email, 0, $atIndex);
      $localLen =3D strlen($local);
      $domainLen =3D strlen($domain);
      if ($localLen < 1 || $localLen > 64)
      {
         // local part length exceeded
         $isValid =3D false;
      }
      else if ($domainLen < 1 || $domainLen > 255)
      {
         // domain part length exceeded
         $isValid =3D false;
      }
      else if ($local[0] =3D=3D '.' || $local[$localLen-1] =3D=3D '.')
      {
         // local part starts or ends with '.'
         $isValid =3D false;
      }
      else if (preg_match('/\\.\\./', $local))
      {
         // local part has two consecutive dots
         $isValid =3D false;
      }
      else if (!preg_match('/^[A-Za-z0-9\\-\\.]+$/', $domain))
      {
         // character not valid in domain part
         $isValid =3D false;
      }
      else if (preg_match('/\\.\\./', $domain))
      {
         // domain part has two consecutive dots
         $isValid =3D false;
      }
      else if
(!preg_match('/^(\\\\.|[A-Za-z0-9!#%&`_=3D\\/$\'*+?^{}|~.-])+$/',
                 str_replace("\\\\","",$local)))
      {
         // character not valid in local part unless
         // local part is quoted
         if (!preg_match('/^"(\\\\"|[^"])+"$/',
             str_replace("\\\\","",$local)))
         {
            $isValid =3D false;
         }
      }
      if ($isValid && !(checkdnsrr($domain,"MX") ||
checkdnsrr($domain,"A")))
      {
         // domain not found in DNS
         $isValid =3D false;
      }
   }
   return $isValid;
}
}