function inclineWord($number)
{
    $word1 = "рубль";
    $word2 = "рубля";
    $word5 = "рублей";
    $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;
    }
}

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