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PHP PHP Basics Unit Converter Manipulating Numbers

Mladen Milinkovic
Mladen Milinkovic
14,246 Points
Posted by Mladen Milinkovic
Mladen Milinkovic
14,246 Points

$integerOne = 1; &integerTwo = 2; Add 5 to $integerOne. Subtract 1 from $integerTwo. Help?!

Need solution, I can't find mistake in my code.

<?php $integerOne = 1; &integerTwo = 2; var_dump($integerOne + 5); var_dump($integerTwo - 1); ?>

index.php 
<?php

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

echo($integerOne + 5);
echo($integerOne - 1);
?>

3 Answers

james south
seal-mask
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points
james south
.a{fill-rule:evenodd;}techdegree seal-36
james south
Front End Web Development Techdegree Graduate 33,271 Points

you don't need to echo anything, they just want you to change the value of your variables. adding/subtracting like you are is not actually reassigning the new values to the variables. for that you simply need to put myVar = myVar + 5 etc., or even more simply, use the += and -= shortcuts, so myVar += 5, etc.

Aigars Kalvans
Aigars Kalvans
3,815 Points
Aigars Kalvans
Aigars Kalvans
3,815 Points

Answer $integerOne=1; $integerTwo=2; $integerOne=1 + 5; $integerTwo=2 - 1;