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
1
2function ch_num($num,$mode=true) {
3$char = array("零","壹","贰","叁","肆","伍","陆","柒","捌","玖");
4$dw = array("","拾","佰","仟","","萬","億","兆");
5$dec = "點";
6$retval = "";
7
8if($mode)
9preg_match_all("/^0*(\d*)\\.?(\d*)/",$num, $ar);
10else
11preg_match_all("/(\d*)\\.?(\d*)/",$num, $ar);
12
13if($ar[2][0] != "")
14$retval = $dec . ch_num($ar[2][0],false); //如果有小数，先递归处理小数
15if($ar[1][0] != "") {
16$str = strrev($ar[1][0]);
17for($i=0;$i<strlen($str);$i++) {
18$out[$i] = $char[$str[$i]];
19if($mode) {
20$out[$i] .= $str[$i] != "0"? $dw[$i%4] : "";
21if($str[$i]+$str[$i-1] == 0)
22$out[$i] = "";
23if($i%4 == 0)
24$out[$i] .= $dw[4+floor($i/4)];
25}
26}
27$retval = join("",array_reverse($out)) . $retval;
28}
29return $retval;
30}
31
32//echo ch_num("12345006789001.123");
33//echo ch_num("880079.1234");
34echo ch_num("300045.0123");