<!DOCTYPE html>
<html lang="en">
<head>
<title>PHP Logical Operators</title>
</head>
<body>
<?php
$year = 2020;
// Leap years are divisible by 400 or by 4 but not 100
if(($year % 400 == 0) || (($year % 100 != 0) && ($year % 4 == 0))){
echo "$year is a leap year.";
} else{
echo "$year is not a leap year.";
}
?>
</body>
</html>