用PHP实现小写金额转换大写金额【精确到分】

/***数字金额转换成中文大写金额的函数*String Int  $num  要转换的小写数字或小写字符串*return 大写字母*小数位为两位**/function get_amount($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";}}