Hi all, I have tried the following script: $val = 10000000000; if (is_int($val)) { echo $val; } else { echo "$val is not an integer\n"; } The answer is: 10000000000 is not an integer. Why does this happen? I use PHP 5. Isn't PHP able to work with values like 10 billion? Do I need to use a certain special class for dealing with big numbers? How can I use that class? Thank you. Teddy -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php