How to convert Arabic numerals to uppercase letters in php

php Method to convert Arabic numerals to uppercase: first create a PHP sample file; then define a "getChineseNumber" method; then match numbers through the "preg_match_all" function; and finally convert through the getChineseNumber method.

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php Method to convert Arabic numerals to uppercase:

php realizes the conversion of Arabic numerals to Chinese capitals

/**
     *  阿拉伯数字到中文大写转换
     *
     * @param $num
     * @param bool $mode
     * @return string
     */
    private function getChineseNumber($num, $mode = true)
    {
        $char = array("零", "壹", "贰", "叁", "肆", "伍", "陆", "柒", "捌", "玖");
        $dw = array("", "拾", "佰", "仟", "", "万", "亿", "兆");
        $dec = "点";
        $retval = "";
        if ($mode) {
            preg_match_all("/^0*(\d*)\.?(\d*)/", $num, $ar);
        } else {
            preg_match_all("/(\d*)\.?(\d*)/", $num, $ar);
        }

        if ($ar[2][0] != 00) {
            $retval = $dec . $this->getChineseNumber($ar[2][0], false); //如果有小数，则用递归处理小数
        }

        if ($ar[1][0] != 00) {
            $str = strrev($ar[1][0]);
            for ($i = 0; $i < strlen($str); $i++) {
                $out[$i] = $char[$str[$i]];
                if ($mode) {
                    $out[$i] .= $str[$i] != "0" ? $dw[$i % 4] : "";

                    if ($str[$i] + $str[($i - 1 >= 0) ? $i - 1 : 0] == 0) {
                        $out[$i] = "";
                    }

                    if ($i % 4 == 0) {
                        $out[$i] .= $dw[4 + floor($i / 4)];
                    }
                }
            }

            $retval = join("", array_reverse($out)) . $retval;
        }

        return $retval;
}

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