number_format
(PHP 3, PHP 4 , PHP 5)
number_format -- Format a number with grouped thousands
Description
string
number_format ( float number [, int decimals])
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 foo as
thousands_sep on the number
1000, number_format() will
return 1f000.
例子 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);
// 1,234
// 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
?>
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See also: sprintf(),
printf() and sscanf().