PHP PHP Basics Unit Converter Manipulating Numbers

Justin Townsend
Justin Townsend
4,335 Points

PHP adding to a variable

I am failing miserable at this!

index.php
<?php

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

$integerOne + 5;
?>

2 Answers

Jeffrey Howard
Jeffrey Howard
15,320 Points

Hey Justin, you are almost there! The task is asking for us to add or subtract a number from the variables.

There are a few ways to approach this but continuing on from your code, you just have to finish it off by either using

$integerOne = $integerOne + 5;

or using short version

$integerOne += 5;

Both solutions are saying take 5 and add it to the variable $integerOne.

Take another look at the video on Arithmetic Operators, Alena does a great job on explaining the different ways to add to a variable.

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

$floatOne = 1.5;

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

or

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

Hope this helps and happy coding!