一个简单的把数字转为大写的人民币写法

//*************************数字转中文******************
function changemoney($money){
$daxie = array('零','壹','贰','叁','肆','伍','陆','柒','捌','玖');
$signl = array('分','角','元','拾','佰','仟','万','拾','佰','仟','亿','拾','佰','仟');
$tmoney = trim($money);
$rmoney = number_format($tmoney,2);//数字格式化
$rremoney = str_replace(".","",$rmoney);//替换句点
$remoney = str_replace(",","",$rremoney);//替换“,”为空
$lemoney = strlen($remoney)-1;
$j = 0;
for($i=$lemoney;$i>=0;$i--){
$submoney=@substr($remoney,$i,1);
$bmoney=$daxie[$submoney].$signl[$j].$bmoney;
$j++;
}
return $bmoney;
}

if(@$_POST["rmoney"]=="换钱啦") {
$newmoney=$_POST["money"];
if(!is_numeric($newmoney)){
$chin="对不起你的钱不通用，请输入数字!(包含任意小数)";
}
else{
$chin=changemoney($newmoney);
}
}