007-adding-comments-in-php.php

<?php
//One line comment
/*
 Multiple
Line
Comment
 */

$sum = 2 + 2; //This is a sum
/*
And this is another
operator
*/
$multiple = 2 * 2;

$outputSum = "The result of the sum is $sum";
$outputMultiple = "The result of the multiplication is $multiple";

echo $outputSum;
echo "\n{$outputMultiple}";

/*
 * Documentation
 * */