unitConverter.php

<?php 
function unit_converter($value, $precession, $lvl1, $lvl2){
    $level1 = "";
    $level2 = "";
    $level3 = "";
    $rem = "";
    $formatedUnit = "";
    
    if($lvl1 && $lvl1 > 0){
       $level3 =  $value % $lvl1;
       $rem = intval($value / $lvl1);
       $formatedUnit = $rem . "-". $level3;    
    }else{
       if($precession){
           return number_format($value, $precession);
       }else{
           return $value;
       }
    }
    
    if($lvl2 && $lvl2 > 0){
        $level2 = $rem % $lvl1;
        $level1 = intval($rem / $lvl1);
        $formatedUnit = $level1. "-" . $level2 . "-" . $level3;
  }
        return $formatedUnit;
}

echo unit_converter(506,2, 12,12);

?>