Description:
------------
When I test email using filter_var it gives incorrect output.


Test script:
---------------
<?php

$email_c = 'oinam.s@ldh.01s.in';

if (filter_var($email_c, FILTER_VALIDATE_EMAIL)) {
    echo "This ($email_c) email address is considered valid.";
}
else
{
 echo "This ( $email_c ) email address is considered invalid.";
}

?> 

Expected result:
----------------
This script works fine give correct result on php 5.2.x not on 5.3.x

Actual result:
--------------
The following should be the actual output
This ( oinam.s@ldh.01s.in ) email address is considered valid.