<html><body>// Variable to check$int = 0;if (filter_var($int, FILTER_VALIDATE_INT) === 0 || filter_var($int, FILTER_VALIDATE_INT)) { echo("Variable is an integer");} else { echo("Variable is not an integer");}</body><!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_validate_int2 by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 03:14:40 GMT --></html>