PHP Manual: Format a number with grouped thousands

Description

string number_format ( float $number [, int $decimals = 0 ] )

string number_format ( float $number , int $decimals = 0 , 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.

Parameters

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.

Return Values

A formatted version of number.

Changelog

Version	Description
5.4.0	This function now supports multiple bytes in `dec_point` and `thousands_sep`. Only the first byte of each separator was used in older versions.

Examples

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 separator
$english_format_number = number_format($number, 2, '.', '');
// 1234.57

?>

number_format

Description

Parameters

Return Values

Changelog

Examples

See Also