php如何让阿拉伯数字转换为中文数字

如果要用于金额的转换，对小数部分的处理要做一下修改

<?php

function ch_num($num,$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] != "")

$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<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)

$out[$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");