Checking string length with strlen

Question

I have this code, i want it to check if the length is NOT 32 or 40. The code below only checks if the word is 32 or 40 in length.

Answer 1

if ($len != 32 && $len != 40)

try that out

Answer 2

What about

if($len != 32 and $len != 40)

Answer 3

<?php
$name = mysql_real_escape_string($_POST['dgt']);
$len = strlen($name);
if ($len != 32 && $len != 40){
print "This is not a name.";
} else {
echo 'This is a name';
?>