note 14786 added to ref.ctype.php

Its not a perfect solution, but if you're can't or don't want to use the ctype functions, you can test to see if something is an integer by doing something like this:<br> <br> if ( $var != "0" && $var / 1 == 0 ) { }<br> <br> it seems redundant, but you're checking to be sure that $var is not the string representation of 0 first, and then finding out if $var is divisible by itself. http://www.php.net/manual/en/ref.ctype.php