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# number_format

(PHP 4, PHP 5)

number_format — Format a number with grouped thousands

### 설명

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

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.

### 반환값

A formatted version of `number` .

### 인수

`number`

  The number being formatted.

`decimals`

  Sets the number of decimal points.

`dec_point`

  Sets the separator for the decimal point.

`thousands_sep`

  Sets the thousands separator.

  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.

### 예제

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
?>`

### 참고

- money_format() - Formats a number as a currency string
- sprintf() - 형식화한 문자열을 반환
- printf() - 형식화한 문자열을 출력
- sscanf() - 문자열을 형식에 따라 해석

nl2br
ord
String 함수 목록
PHP Manual