Códigos - Reto Romanos

[mortiprogramador]

pateketrueke

Código PHP:

<?php
function numberRoman($test)
{
  static $dec = array(
    'I' => 1,
    'V' => 5,
    'X' => 10,
    'L' => 50,
    'C' => 100,
    'D' => 500,
    'M' => 1000,
  ), $expand = array(
    'CM' => 'DCCCC',
    'CD' => 'CCCC',
    'XC' => 'LXXXX',
    'XL' => 'XXXX',
    'IX' => 'VIIII',
    'IV' => 'IIII',
  );
 
  $output = 0;
  $expr = strtr(strtoupper($test), $expand);
  foreach (preg_split('//', $expr) as $i) $output += ! empty($dec[$i])? $dec[$i]: 0;
  return $output;
}
function romanNumber($test)
{
  static $dec = array(
    '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,
  );
 
  $output = '';
  do
  {
    foreach ($dec as $letter => $num)
    {
      if ($num > $test) continue;
      $output .= $letter;
      $test -= $num;
      break;
    }
  } while ($test > 0);
  return $output;
}
?>