Numericals.php

<?php
/**
 * Created by PhpStorm.
 * User: programmer
 * Date: 09.11.2015
 * Time: 15:10
 */

namespace common\helpers;


class numericals
{
    public static function numericals($str, $num){
        $strEnd = '';
        $ost10 = fmod($num, 10);
        $ost100 = fmod($num, 100);

		$endingOne = '';
		$endingOneFour = 'а';
		$endingMany = 'ов';

		if($str == 'заняти') {
			$endingOne = 'е';
			$endingOneFour = 'я';
			$endingMany = 'й';
		}

        if ($ost10 ==  1 && $ost100 !=  11) {
            $strEnd = $endingOne;
        } elseif((($ost10 > 1 &&  $ost10 < 5) || ($ost10>0 && $ost10<1)) && ($ost100<10 || $ost100>20)){
            $strEnd = $endingOneFour;
        } elseif(($ost10 == 0) || ($ost10 >= 5 && $ost10 <= 9) || ($ost100 >= 11 &&  $ost100 <= 19)){
            $strEnd = $endingMany;
        }

        return $str . $strEnd;
    }

	/**
	 * @param $ends array of
	 *  [
	 *      {(str) for where (the latter figure of $num) = 1, exclude 11},
	 *      {(str) for where 1 < (the latter figure of $num) < 5 && 10 > (the last two digits of $num) > 20}
	 *      {(str) for where (the latter figure of $num) = 0 || 5 <= (the latter figure of $num) <= 9 || 11 <= (the last two digits of $num) > 19}
	 *  ]
	 * @param $num
	 * @return string
	 */
	public static function numericalsByArray($ends, $num){
		$strEnd = '';
		$ost10 = fmod($num, 10);
		$ost100 = fmod($num, 100);

		if($ost10 ==  1 && $ost100 !=  11){
			$strEnd = $ends[0];
		}
		elseif(($ost10 > 1 &&  $ost10 < 5) && ($ost100<10 || $ost100>20)){
			$strEnd = $ends[1];
		}
		elseif(
			( $ost10 == 0 )
			|| ( $ost10 >= 5 && $ost10 <= 9 )
			|| ( $ost100 >= 11 &&  $ost100 <= 19 )
		){
			$strEnd = $ends[2];
		}

		return $strEnd;
	}
}