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PHP PHP Basics Unit Converter Manipulating Numbers

bilal agha
seal-mask
.a{fill-rule:evenodd;}techdegree
bilal agha
PHP Development Techdegree Student 4,509 Points
Posted by bilal agha
.a{fill-rule:evenodd;}techdegree
bilal agha
PHP Development Techdegree Student 4,509 Points

Challenge Help

hello i ma facing an error in my answer. i have been trying to solve it and watched the videos again and again but can't figure out my mistakes. can someone please help me out.

index.php 
<?php

//Place your code below this comment
$integerOne = 1;
$integerTwo = 2;
$floatOne = 1.5;
var_dump ( $integerOne );
var_dump ( 1);
var_dump ( $integerOne + 5);
var_dump ( $integerTwo );
var_dump ( 2);
var_dump ( $integerTwo - 1);
?>

3 Answers

Patricia Silva
PLUS
Patricia Silva
Courses Plus Student 89,123 Points
Patricia Silva
Patricia Silva
Courses Plus Student 89,123 Points

Remove the var_dumps and check your answer. If you still have an error, post again.

Patricia Silva
PLUS
Patricia Silva
Courses Plus Student 89,123 Points
Patricia Silva
Patricia Silva
Courses Plus Student 89,123 Points

This is the out from my console:

$integerOne = 1;

< 1

$integerTwo = 2; < 2

$floatOne = 1.5; < 1.5

$integerOne +=5;

< 6

$integerTwo -=1; < 1

Chad M. Crabtree
Chad M. Crabtree
4,406 Points
Chad M. Crabtree
Chad M. Crabtree
4,406 Points

I had the same issue at first. The problem is that you need to actually assign the arithmetic operation to the variable you're trying to alter. Here is the correct solution:

<?php

$integerOne = 1;
$integerTwo = 2;
$floatOne = 1.5;

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

// Or you can use the shorthand version of the same thing:

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

?>

And, of course, if you wanted to display this to the console, you could do the same with var_dump():

<?php

$integerOne = 1;
$integerTwo = 2;
$floatOne = 1.5;

var_dump( $integerOne = $integerOne + 5 );
var_dump( $integerTwo = $integerTwo - 1 );

// Again, here is the shorthand:

var_dump( $integerOne += 5 );
var_dump( $integerTwo -= 1 );

?>

Hope that helps!