Description:
------------
---
From manual page: http://www.php.net/filter.examples.validation
---
In PHP Filter Email Validation there is mistype error in the first example. 

<?php
$email_a = 'joe@example.com';
$email_b = 'bogus';

if (filter_var($email_a, FILTER_VALIDATE_EMAIL)) {
    echo "This ($email_a) email address is considered valid.";
}
if (filter_var($email_b, FILTER_VALIDATE_EMAIL)) {
    echo "This ($email_b) email address is considered valid.";
}
?>

Both the bogus and valid are given valid emails...