Another test, converting arab numbers to roman
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class Main {
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private function num2Roman($num) {
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$n = intval($num);
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$result = '';
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$lookup = array('M' => 1000, 'CM' => 900, 'D' => 500, 'CD' => 400,
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'C' => 100, 'XC' => 90, 'L' => 50, 'XL' => 40,
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'X' => 10, 'IX' => 9, 'V' => 5, 'IV' => 4, 'I' => 1);
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foreach($lookup as $roman => $value) {
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$matches = intval($n / $value);
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$result .= str_repeat($roman, $matches);
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$n = $n % $value;
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}
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return $result;
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}
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public function __construct() {
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print(' 7 => ' . $this->num2Roman(7) . "\n");
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print(' 9 => ' . $this->num2Roman(9) . "\n");
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print(' 11 => ' . $this->num2Roman(11) . "\n");
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print(' 42 => ' . $this->num2Roman(42) . "\n");
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print(' 105 => ' . $this->num2Roman(105) . "\n");
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print('1984 => ' . $this->num2Roman(1984) . "\n");
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print('1999 => ' . $this->num2Roman(1999) . "\n");
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print('2018 => ' . $this->num2Roman(2018) . "\n");
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print('2144 => ' . $this->num2Roman(2144) . "\n");
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}
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}
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new Main();
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7 => VII
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9 => IX
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11 => XI
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42 => XLII
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105 => CV
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1984 => MCMLXXXIV
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1999 => MCMXCIX
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2018 => MMXVIII
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2144 => MMCXLIV
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