php数字转换成大写的实现方法：首先创建一个PHP示例文件；然后定义一个“get_amount”方法；接着通过if等语句实现转换逻辑；最后执行该文件即可。
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代码实例：
/**
* 数字金额转换成中文大写金额,要求小数位数为两位
* @param $num 要转换的小写数字或小写字符串
* @return 大写金额字符串
*/
function get_amount($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) > 11) {
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";
}
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