php - 格式化数字

Question

我有一张表格，上面有这样的数字:

19809.1
1982.0
1982.19

它的货币。有没有我可以用来格式化这些数字的函数？

19 809,10
1 982,00
1 982,19

Answer 1

使用 number_format 很容易:

number_format(value, number_of_decimals, "decimal_separator", "thousand_separator")

像这样:

echo number_format(19809.1, 2, ",", " ");

这告诉数字有 2 位小数，逗号 , 作为小数分隔符，空格 作为千位分隔符。输出将是:

19 809,10

其他例子:

echo number_format(19809.1, 0, "", ".");
> 19.809
> no decimal and . as thousand separator

echo number_format(19809.1, 3, ".", ",");
> 19,809.100
> 3 decimals, comma as thousand separator and dot as decimal separator