What is the best way to check if a number is even or has a decimal point in PHP?

To check if a number is even or has a decimal point in PHP, you can use the modulus operator (%) to check if the number is divisible by 2 (even) and the floor function to check if the number has a decimal point. By combining these two checks, you can determine if a number is even or has a decimal point. 

<?php
function checkNumber($num){
    if($num % 2 == 0){
        echo $num . " is even.";
    } else {
        echo $num . " is odd.";
    }

    if(floor($num) != $num){
        echo " It has a decimal point.";
    } else {
        echo " It does not have a decimal point.";
    }
}

checkNumber(10); // Output: 10 is even. It does not have a decimal point.
checkNumber(3.5); // Output: 3.5 is odd. It has a decimal point.
?>

Keywords

PHP number even decimal point check

Related Questions