Question

I have a string (not an array) of grade levels for a student. Here are some examples of possible entries:

k,1,2,3,4,5
1,2,3,4
1
1,2
3,4,5

Maximum grade level for a student is 5.

I want to convert the string to an english readable range. So given my above examples, this would be the output:

K & Up
1-4
1
1 & 2
3 & Up

How best to handle this? Examples are appreciated, thanks!

Answer 1

<?php
function toRange($string)
{
$min = "K";
$max = 5;

//take string and turn into an array
$grades = explode(", ",$string);
$firstItem = $grades[0];
$lastItem = $grades[count($grades)-1];
if (count($grades) == 1)
{
  $output = $firstItem;
}
else
{
    if ($firstItem == "K")
    {
        if ($lastItem == 5)
        {
          $output = "K & Up";
        }
        if ($lastItem == 1)
        {
            $output = "K & 1";
        }
        else {
            $output = "K -" . $lastItem;
        }
        break;

    }
    else 
    {
        if ($lastItem == 5)
        {
            if ($firstItem != 4)
            {
                $output = $firstItem . " & Up";
            }
            else {
                $output = "4 & 5";
            }
        }
        else {
            if ($lastItem > $firstItem + 1)
            {
                $output = $firstItem . " - " . $lastItem;
            }
            else {
                $output = $firstItem . " & " . $lastItem;
            }
        }
    }


     }
return $output;
    }


?>

This could have been much easier had it not been for the involvement of the letter.