<?php
$number1 = 10;
$number2 = 0;
$result = $number1 / $number2;
if (is_nan($result)) {
echo "The result is not a number.";
} else {
echo "The result is: $result";
}
?>
$number1
` and `$number2
` are assigned the values `10` and `0`, respectively. The `$result
` variable is assigned the value of `$number1
` divided by `$number2
`. Since dividing a number by zero is undefined, the result of the calculation is `NaN`. is_nan()
` function is used to check if the value of `$result
` is `NaN
`. If `$result
` is `NaN
`, the message "The result is not a number" will be printed. Otherwise, the message "The result is: " followed by the value of `$result
` will be printed.NaN
` values in your PHP code, as they can cause unexpected behavior and errors if not properly handled.