PHP PHP Basics Unit Converter Manipulating Numbers

Robert Skaggs
Robert Skaggs
917 Points

Hi How should I subtract 1 from integer two in this example?

Hi

How should I subtract 1 from integer two in this example?

index.php
<?php

//Place your code below this comment
$integerOne= 1;
$integerTwo= 2;
$floatOne = 1.5; 

$integerOne += 5




?>

1 Answer

Heidi Fryzell
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MOD
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Heidi Fryzell
Front End Web Development Treehouse Moderator 21,830 Points

Hi Robert,

You are on the right track with the addition of 5 to $integerOne. Just add a semi-colon and that line will work.

For the subtraction you do just like you did with the addition but change the sign to subtraction and the number to "1":

//Place your code below this comment
$integerOne = 1;
$integerTwo = 2;
$floatOne = 1.5;

$integerOne +=5;
$integerTwo -=1;
?>

Hope this helps and happy coding!