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<?php function numToOrdinalWord($num) { $first_word = array('eth', 'First', 'Second', 'Third', 'Fourth', 'Fifth', 'Sixth', 'Seventh', 'Eighth', 'Ninth', 'Tenth', 'Eleventh', 'Twelfth', 'Thirteenth', 'Fourteenth', 'Fifteenth', 'Sixteenth', 'Seventeenth', 'Eighteenth', 'Nineteenth', 'Twentieth'); $second_word = array('', '', 'Twenty', 'Thirty', 'Forty', 'Fifty', 'Sixty', 'Seventy', 'Eighty', 'Ninety'); if ($num <= 20) return $first_word[$num]; $first_num = substr($num, -1, 1); $second_num = substr($num, -2, 1); return $string = str_replace( 'y-eth', 'ieth', $second_word[$second_num] . '-' . $first_word[$first_num] ); } for($i = 0; $i < 100; $i++)echo numToOrdinalWord($i) . PHP_EOL;

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