<?php
/**
 * Integer to Roman converter
 *
 * Mirrors the function found at: http://www.go4expert.com/forums/showthread.php?t=4948
 *
 * There is not need to create and instance.
 * Use it like this:
 * DigiMinaNumberToRoman::toRoman($number, true);
 *
 * @package DigiMina
 */

class DigiMinaNumberToRoman {

	/**
	 * Returns a Roman string correspondign to a number provided
	 *
	 * @param int $number An integer to be converted
	 * @param bool $uppercase Defaults to true, uppercase or not
	 *
	 * @return string´
	 */
	public function toRoman($number, $uppercase = true) {
		$n = intval($number);
		$result = '';

		$lookup = 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
		);

		foreach ($lookup as $roman => $value) {
			$matches = intval($n / $value);

			$result .= str_repeat($roman, $matches);

			$n = $n % $value;
		}

		return ((bool)$uppercase) ? strtoupper($result) : $result;
	}
}