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PHP Build a Simple PHP Application Working With Functions Working with Functions

Mike Miello
Mike Miello
5,181 Points
Posted by Mike Miello
Mike Miello
5,181 Points

confused on how to calculate $output

$output = "";
$i = 0;

foreach($numbers as $number) {

    $i = $i + 1;

    if ($i < $total) {

        $output = $number . $output;

    }

}

echo $output;

?>

Can someone explain how to calculate output? I ran the php code and see the answer to be 321, but I don't understand how it is calculating the values. For example, I don't understand where the 3 is coming from.

Would appreciate some help. Thanks!

2 Answers

Kenya Sullivan
Kenya Sullivan
21,711 Points
Kenya Sullivan
Kenya Sullivan
21,711 Points

Is this the full code for the example?

Chris Shaw
Chris Shaw
26,676 Points
Chris Shaw
Chris Shaw
26,676 Points

To go on what Kenya said you have quite a bit of code missing, E.g. the $numbers array and $total variable which I assume equals the value of 4, essentially based on that assumption this is what's happening.

With each iteration of the loop the value of $i is been tested against the number value for $total, if that number is less than $total its allowed to continue appending numbers onto the $output string which by the end of it should equal 321 based on my earlier assumption.

Of course without seeing the full code its very hard to say what the value of $number truly is.