note 9306 added to getmxrr
| From: | ssmith at personalcarehmo dot com | Date: | Fri, 27 Oct 2000 09:05:48 +0000 |
| Subject: | note 9306 added to getmxrr | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-7040@lists.php.net to get a copy of this message | ||
A common use of this function is to check the validity of an email address. Through trial and error,
I have found that this works fairly well, although it does not check for the existence of the actual
user; rather, it verifies the existence of any and all domains associated with the address.
function email_is_valid ($email) {
if (eregi("^[0-9a-z]([-_.]?[0-9a-z])*@[0-9a-z]([-.]?[0-9a-z])*\\.[a-z]{2,3}$", $email,
$check)) {
if ( getmxrr(substr(strstr($check[0], '@'), 1), $validate_email_temp) ) {
return TRUE;
}
// THIS WILL CATCH DNSs THAT ARE NOT MX.
if(checkdnsrr(substr(strstr($check[0], '@'), 1),"ANY")){
return TRUE;
}
}
return FALSE;
}
http://www.php.net/manual/function.getmxrr.php