<?php
$numberHome = 1;
$floor = 9;
$floorapartments = 4;
houseCheck($numberHome,$floor,$floorapartments);
function houseCheck($numberHome,$floor,$floorapartments){
$entranceApartments = $floor * $floorapartments;
$checkentrance = (($numberHome-1) / $entranceApartments)+1;
$check = ((($numberHome - 1) % $entranceApartments) / $floorapartments)+1;
if ($numberHome < 0) {
        return false;
    }
    return array((int)$check,(int)$checkentrance);
}