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number_format — Returns the formatted string representation of the value according to the format specified.


string number_format(num[, places][, decimal_separator][, thousands_separator]);
float num: Number to be formatted
int places (optional): Number of decimal places to return
string decimal_separator (optional): Decimal point separator
string thousands_separator (optional): Thousands separator


Formatted number as a string


This function returns a string representation of the value given by num . This string has places decimal places, the decimal separator (radix) is decimal_separator , and the thousands separator is thousands_separator . This can be useful for printing numeric values intended for audiences in different locales or countries.

If you supply decimal_separator , you must also supply thousands_separator .

The default formatting is US/British. The default value for decimal_separator is ',' (a single comma), and the default value for thousands_separator is '.' (a single period).

If you don't provide places , the returned value is rounded off to zero decimal places.


PHP 3, PHP 4

See also

See also printf() , sprintf()


Example 684. Format a number

$number = 123456.789;
echo "US/British/Thai: " . number_format($number, 2) . "\n";
echo "Canadian/German: " . number_format($number, 2, ',', ' ') . "\n";
echo "(General) European: " . number_format($number, 2, ',', '.') . "\n";

PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing (Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch). This material may be distributed only subject to the terms and conditions set forth in the Open Publication License, v1.0 or later (the latest version is presently available at The authors of this book have elected not to choose any options under the OPL. This online book was obtained from and is designed to provide information about the PHP programming language, focusing on PHP version 4.0.4 for the most part. The information is provided on an as-is basis, and no warranty or fitness is implied. All persons and entities shall have neither liability nor responsibility to any person or entity with respect to any loss or damage arising from the information contained in this book.

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