如何以逻辑方式在数字中添加逗号


How to add comma in a number in logical way

我不知道如何转换数字。 number_format()没有帮助我。这就是我想做的...

from 1 to 0,01
from 12 to 0,12
from 1234 to 12,34
from 12345 to 123,45
from 123456 to 1.234,56
from 1000000 to 10.000,00
from 123456789 to 1.234.567,89
etc.

谢谢:)

先除以100,然后可以使用number_format

$number = 1;
echo number_format($number / 100, 2, ",", "."); // 2 decimals, "," and "." as seperators
// gives 0,01