some errors

I'm using this class in email validation class, and when I started sample from email val. class my server throw me some errors.

All you need is to change all lines contains
$this = false;
return;

into

return false (erease $this=false line)

And all of it should work just fine :)

I haved change the line $this = false; and the result work. But PHP show the error message like this:
Warning: fread() [function.fread]: Length parameter must be greater than 0 in dns.php on line 224.
How about this error?

Warning: fread() [function.fread]: Length parameter must be greater than 0 in ..... on line 224

any idea?