How can PHP code be compressed to reduce file size?

To reduce the file size of PHP code, you can use PHP minification tools or techniques such as removing unnecessary white spaces, comments, and line breaks. This can help make the code more compact and efficient without affecting its functionality.

// Original PHP code
function addNumbers($num1, $num2) {
    $sum = $num1 + $num2;
    return $sum;
}

// Minified PHP code
function addNumbers($num1,$num2){$sum=$num1+$num2;return $sum;}