# number_format

(PHP 4, PHP 5)

number_format — Format a number with grouped thousands

### Description

string number_format ( float `$number` [, int `$decimals` [, string `$dec_point` ]], string `$thousands_sep` )

number_format() returns a formatted version of `number` . This function accepts either one, two or four parameters (not three):

If only one parameter is given, `number` will be formatted without decimals, but with a comma (",") between every group of thousands.

If two parameters are given, `number` will be formatted with `decimals` decimals with a dot (".") in front, and a comma (",") between every group of thousands.

If all four parameters are given, `number` will be formatted with `decimals` decimals, `dec_point` instead of a dot (".") before the decimals and `thousands_sep` instead of a comma (",") between every group of thousands.

Only the first character of `thousands_sep` is used. For example, if you use bar as `thousands_sep` on the number 1000, number_format() will return 1b000.

Example#1 number_format() Example

For instance, French notation usually use two decimals, comma (',') as decimal separator, and space (' ') as thousand separator. This is achieved with this line :

`<?php
$number = 1234.56;
// english notation (default)
$english_format_number = number_format($number);
// 1,235
// French notation
$nombre_format_francais = number_format($number, 2, ',', ' ');
// 1 234,56
$number = 1234.5678;
// english notation without thousands seperator
$english_format_number = number_format($number, 2, '.', '');
// 1234.57
?>`

See also: money_format(), sprintf(), printf() and sscanf().