<?php

// Staring straight up into the sky ... oh my my
error_reporting(-1);

$word1 = "рубль";
$word2 = "рубля";
$word5 = "рублей";
$number = 131102;
function inclineWord($number, $word1, $word2, $word5)
{
    $number = $number % 10;
    $arrWord1 = array(1);
    $arrWord2 = array(2,3,4);
    $arrWord5 = array(5,6,7,8,9);
    foreach ($arrWord1 as $arr1) {
        if ($number == $arr1) {
            return $word1;
        }
    }
    foreach ($arrWord2 as $arr2) {
        if ($number == $arr2) {
            return $word2;
        }
    }
    foreach ($arrWord5 as $arr5) {
        if ($number == $arr5) {
            return $word5;
        }
        else {
            $number = $number % 100;
    }
}


    $arrWord1 = array(21, 31, 41, 51, 61, 71, 81, 91);
    $arrWord2 = array(22, 23, 24, 32, 33, 34, 42, 43, 44, 52, 53, 54, 62, 63, 64, 72, 73, 74, 82, 83, 84, 92, 93, 94);
    $arrWord5 = array(10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 25, 26, 27, 28, 29, 30, 35, 36, 37, 38, 39, 40, 45, 46, 47, 48, 49, 50, 55, 56, 57, 58, 59, 60, 65, 66, 67, 68, 69, 70, 75, 76, 77, 78, 79, 80, 85, 86, 87, 88, 89, 90, 95, 96, 97, 98,99 );

foreach ($arrWord1 as $arr1) {
    if ($number == $arr1) {
        return $word1;
    }
}
foreach ($arrWord2 as $arr2) {
    if ($number == $arr2) {
        return $word2;
    }
}
foreach ($arrWord5 as $arr5) {
    if ($number == $arr5) {
        return $word5;
    }
}
 if ($number==0)
    {
        return $word5;
    }
    }
    $result = inclineWord($number, $word1, $word2, $word5);
    $result2 = $number . " {$result}";
    echo $result2;