[PHP] Validating Email Conditional

[CK]

Hi,

My script is working, but valid returns true even if the user is  
bogus. What needs changing so both conditions have to match, the  
following attempt returned "unexpected logical...."

 if (getmxrr($domaintld,$mxrecords)) && if(fsockopen($domaintld,25, 
$errno,$errstr,30)) {
         $valid = true;
                 }




The following works, but needs the conditional mentioned...

<?php
$email = "[EMAIL PROTECTED]";
$valid="";

function validate_email($email)


{

   // Create the syntax of email with validation regular expression
   $regexp = "^([_a-z0-9-]+)(\.[_a-z0-9-]+)*@([a-z0-9-]+)(\.[a-z0-9-] 
+)*(\.[a-z]{2,4})$";

   // Presume that the email is invalid
   $valid = false;

   // Validate the syntax
   if (eregi($regexp, $email))
   {
      list($username,$domaintld) = split("@",$email);
      // Validate the domain
      if (getmxrr($domaintld,$mxrecords))
         $valid = true;
                 }
        // attempts a socket connection to mail server
  if(fsockopen($domaintld,25,$errno,$errstr,30)) {
                $valid = true;
   } else {
        $valid = false;
  }
         return $valid;
}

if (validate_email($email))
   echo "Email is valid!";
else
   echo "Email is invalid!";

?>

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