Are there any alternative methods or functions in PHP that can be used to determine if a number is even or odd, aside from using the Modula Operator?

The Modula Operator (%) is commonly used to determine if a number is even or odd in PHP by checking if the remainder of dividing by 2 is equal to 0 for even numbers. However, there are alternative methods to achieve the same result, such as using bitwise operators or the built-in function `is_int()` in combination with a simple check. 

// Using bitwise operator to determine if a number is even or odd
function isEven($num) {
    return ($num & 1) == 0;
}

// Using is_int() function to determine if a number is even or odd
function isEven($num) {
    if(is_int($num / 2)) {
        return true; // Even number
    } else {
        return false; // Odd number
    }
}

// Test the function
$num = 5;
if(isEven($num)) {
    echo $num . " is even.";
} else {
    echo $num . " is odd.";
}

Keywords

PHP even number odd number alternative methods functions

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