How to use php number_format function

php The number_format function is used to format numbers by thousands grouping. Its syntax is number_format(number,decimals,decimalpoint,separator). The parameter number is required and refers to the number to be formatted.

How to use php number_format function?

Definition and Usage

number_format() function formats a number by grouping by thousands.

Note: This function supports one, two or four parameters (not three).

Syntax

number_format(number,decimals,decimalpoint,separator)

Parameters

number Required. The number to format. If no other parameters are set, the number is formatted without a decimal point and with a comma (,) as the thousands separator.

decimals Optional. Specify the number of decimals. If this parameter is set, numbers are formatted using a period (.) as the decimal point.

decimalpoint Optional. Specifies the string used as the decimal point.

separator Optional. Specifies the string used as thousands separator. Only the first character of the parameter is used. For example, "xxx" only outputs "x".

Note: If this parameter is set, all other parameters are required.

Return value: Returns the formatted number.

PHP Version: 4

Change Log:

Since PHP 5.4, this function supports multibytes in parameters decimalpoint and separator. In previous versions, the value used the first byte of each delimiter.

Example 1

You want to return a price:

One parameter will round the number (formatted with no decimal places ), two parameters will give you the result you want:

<?php
$num = 1999.9;
$formattedNum = number_format($num)."<br>";
echo $formattedNum;
$formattedNum = number_format($num, 2);
echo $formattedNum;
?>

Output:

2,000
1,999.90

Example 2

Formatted number:

<?php
echo number_format("1000000")."<br>";
echo number_format("1000000",2)."<br>";
echo number_format("1000000",2,",",".");
?>

Output:

1,000,000
1,000,000.00
1.000.000,00

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