一个阿拉伯数字转中文数字的函数_PHP教程

最近因需要，写了个“阿拉伯数字转中文数字的函数”。搜索了精华区只见到一个类似的。
感觉到我的算法不错，所以贴出来共享一下如果要用于金额的转换，对小数部分的处理要做一下修改
function ch_num($num,$mode=true) {
$char = array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");
$dw = array("","拾","佰","仟","","萬","億","兆");
$dec = "點";
$retval = "";

if($mode)
preg_match_all("/^0*(\d*)\.?(\d*)/",$num, $ar);
else
preg_match_all("/(\d*)\.?(\d*)/",$num, $ar);

if($ar[2][0] != "")
$retval = $dec . ch_num($ar[2][0],false); //如果有小数，先递归处理小数
if($ar[1][0] != "") {
$str = strrev($ar[1][0]);
for($i=0;$i $out[$i] = $char[$str[$i]];
if($mode) {
$out[$i] .= $str[$i] != "0"? $dw[$i%4] : "";
if($str[$i]+$str[$i-1] == 0)
$out[$i] = "";
if($i%4 == 0)
$out[$i] .= $dw[4+floor($i/4)];
}
}
$retval = join("",array_reverse($out)) . $retval;
}
return $retval;
}

//echo ch_num("12345006789001.123");
//echo ch_num("880079.1234");
echo ch_num("300045.0123");

?>

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