<?php

error_reporting(-1);
mb_internal_encoding('utf-8');


function inclineWord($number) {
	$word1 = 'рубль';
    $word2 = 'рубля';
    $word5 = 'рублей';
	$lastDigit = $number % 10;
	$last2Digits = $number % 100;
		if (($lastDigit == 1) && ($last2Digits != 11)) {
			return $word1;
		} elseif (
			($lastDigit >= 2) && 
			($lastDigit <= 4 ) && 
			($last2Digits != 12) && 
			($last2Digits != 13) && 
			($last2Digits != 14)
		) {
			return $word2;
		} else {
			return $word5;
		}
}

echo inclineWord(114);