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PHP PHP Basics Unit Converter Manipulating Numbers

Posted by Geet Aneja
Geet Aneja
2,091 Points

I added 5 to $integerOne. It is still not passing.

Help?

index.php 
<?php


//Place your code below this comment

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

?>
charquise
charquise
1,274 Points

Hi Geet,

For task 2 your code should be

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

1 Answer

Danilo Mezgec
Danilo Mezgec
23,860 Points
Danilo Mezgec
Danilo Mezgec
23,860 Points

You need to sum and subtract the values to the variable.

For i.e.:

<?php
$foo = 100;
$foo = $foo + 1;

In this way you declare the varible first, and then you reuse it later on and update it.

What's the sense?

Let's say that you have a for cycle for example, that runs a certain amount of time, and you want to update the value of $foo each time that a particular condition appends, you can have something like that (pseudocode):

<?php
$foo = 5; //for some reason we need to start from 5, doesn't matter why
for([FOR CONDITION HERE]){
  if([SOMETHING IS TRUE]){
    //Some other useful code
    $foo++; //This will add 1 to $foo, same as $foo = $foo + 1;
  }
}
echo $foo; //We will see how many times the conditional statement has been true. For i.e. if the result is 8, it means that it was true 3 times