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number_format
(PHP 4, PHP 5, PHP 7)
number_format — Format a number with grouped thousands
Description
$number [, int $decimals = 0 ] )$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_sepSets 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
?>原文出處：PHP: number_format - Manual