My first question:
I have a message like this: notice: undefined offset 0
I use an input form to check with dns_get_record and DNS_MX whether the domain of an email exists.
I can check the emails if the domain does exist, but a wrong domain like: mail@verynonexistingdomain.com throws in the notice undefined offset 0
so does an empty input.
<html>
<center>
<br> email input :<br>
<form action="#" method = "post">
<input type ="text" name ="mail">
<br>
<input type="submit" name = "click" value ="zend">
<