Moleft专用函数库(三) - 中文数字转阿拉伯数字

函数说明

好久没有更新“Moleft专用函数库”这个系列了，这个函数的思路主要来源于刚刚写的百度收录查询，查询到的结果是40亿5464万这种格式，需要把它转成4054640000的格式，于是便查了一下网上现有的函数，并且加以修改。

函数源码

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function num_replace($string)
{
    if(is_numeric($string)){
        return $string;
    }
    $a = ['仟','佰','拾'];
    $b = ['千','百','十'];
    $string = str_replace($a, $b, $string);
    $num = 0;
    $yi = explode('亿', $string);
    if (count($yi) > 1) {
        $num += num_replace($yi[0]) * 100000000;
        $string = $yi[1];
    }
    $wan = explode('万', $string);
    if (count($wan) > 1) {
        $num += num_replace($wan[0]) * 10000;
        $string = $wan[1];
    }
    $qian = explode('千', $string);
    if (count($qian) > 1) {
        $num += num_replace($qian[0]) * 1000;
        $string = $qian[1];
    }
    $bai = explode('百', $string);
    if (count($bai) > 1) {
        $num += num_replace($bai[0]) * 100;
        $string = $bai[1];
    }
    $shi = explode('十', $string);
    if (count($shi) > 1) {
        $num += num_replace($shi[0] ? $shi[0] : '一') * 10;
        $string = $shi[1] ? $shi[1] : '零';
    }
    $ling = explode('零', $string);
    if (count($ling) > 1) {
        $string = $ling[1];
    }
    $d = array(
        '一' => '1','二' => '2','三' => '3','四' => '4','五' => '5','六' => '6','七' => '7','八' => '8','九' => '9',
        '壹' => '1','贰' => '2','叁' => '3','肆' => '4','伍' => '5','陆' => '6','柒' => '7','捌' => '8','玖' => '9',
        '零' => 0, '0' => 0, 'O' => 0, 'o' => 0,
        '两' => 2
    );
    return $num + @$d[$string];
}

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使用示例

$num = '40亿5464万';
var_dump(num_replace($num));
//int(4054640000)