PHP 小写金额转换大写金额（精确到分）的解决办法

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/**
 *数字金额转换成中文大写金额的函数
 *String Int  $num  要转换的小写数字或小写字符串
 *return 大写字母
 *小数位为两位
 * @author php教程 www.idcnote.com
 **/
 function get_amount($num){
  $c1 = "零壹贰叁肆伍陆柒捌玖";
  $c2 = "分角元拾佰仟万拾佰仟亿";
  $num = round($num, 2);
  $num = $num * 100;
  if (strlen($num) > 10) {
   return "数据太长，没有这么大的钱吧，检查下";
  } 
  $i = 0;
  $c = "";
  while (1) {
   if ($i == 0) {
    $n = substr($num, strlen($num)-1, 1);
   } else {
    $n = $num % 10;
   } 
   $p1 = substr($c1, 3 * $n, 3);
   $p2 = substr($c2, 3 * $i, 3);
   if ($n != '0' || ($n == '0' && ($p2 == '亿' || $p2 == '万' || $p2 == '元'))) {
    $c = $p1 . $p2 . $c;
   } else {
    $c = $p1 . $c;
   } 
   $i = $i + 1;
   $num = $num / 10;
   $num = (int)$num;
   if ($num == 0) {
    break;
   } 
  }
  $j = 0;
  $slen = strlen($c);
  while ($j < $slen) {
   $m = substr($c, $j, 6);
   if ($m == '零元' || $m == '零万' || $m == '零亿' || $m == '零零') {
    $left = substr($c, 0, $j);
    $right = substr($c, $j + 3);
    $c = $left . $right;
    $j = $j-3;
    $slen = $slen-3;
   } 
   $j = $j + 3;
  }
  if (substr($c, strlen($c)-3, 3) == '零') {
   $c = substr($c, 0, strlen($c)-3);
  }
  if (empty($c)) {
   return "零元整";
  }else{
   return $c . "整";
  }
 }


/***   来自php教程（www.idcnote.com）   ***/

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