Convert all numbers to Roman style

romanNumeralConverter.php

<?php

 public function getRomanNumeral(int $integer): string
 {
     $romanNumeralConversionTable = [
         'M' => 1000,
         'CM' => 900,
         'D' => 500,
         'CD' => 400,
         'C' => 100,
         'XC' => 90,
         'L' => 50,
         'XL' => 40,
         'X' => 10,
         'IX' => 9,
         'V' => 5,
         'IV' => 4,
         'I' => 1
     ];
     $romanString = "";
     while ($integer > 0) {
         foreach ($romanNumeralConversionTable as $rom => $arb) {
             if ($integer >= $arb) {
                 $integer -= $arb;
                 $romanString .= $rom;
                 break;
             }
         }
     }
     return $romanString;
 }