PHP number_format() Function
In this chapter you will learn:
- Definition for PHP number_format() Function
- Syntax for PHP number_format() Function
- Parameter for PHP number_format() Function
- Return for PHP number_format() Function
- Example - Use number_format() Function to format number
Definition
The number_format() function rounds numbers and adds commas as a thousands separator.
Syntax
PHP number_format() Function has the following syntax.
string number_format ( float $number [, int $decimals = 0 ] )
or
string number_format ( float num [, int decimals [, string decimal_point, string thousands_sep]] ) Parameter
- number - The number being formatted.
- decimals - Sets the number of decimal points.
- dec_point - Sets the separator for the decimal point.
- thousands_sep - Sets the thousands separator.
This function accepts either one, two, or four parameters (not three):
- If only one parameter is given, number will be formatted without decimals, but with a comma (",") between every group of thousands.
- If two parameters are given, number will be formatted with decimals decimals with a dot (".") in front, and a comma (",") between every group of thousands.
- If all four parameters are given, number will be formatted with decimals decimals, dec_point instead of a dot (".") before the decimals and thousands_sep instead of a comma (",") between every group of thousands.
Return
PHP number_format() Function returns a formatted version of number.
Example
You can pass it either one, two, or four parameters.
number_format($n) rounds $n to the nearest whole number and
adds commas in between thousands. For example:
<?PHP
$total = 12345.6789;
echo "Total charge is \$", number_format($total), "\n";
?>
That will output Total charge is $12,346, because it rounds up to the nearest decimal place.
number_format($n,$p) rounds $n to $p decimal places, adding commas between thousands. For example:
<?PHP
echo "Total charge is \$", number_format($total, 2), "\n";
?>
This time the output is 12,345.68, as it has been rounded to two decimal places.
number_format($n, $p, $t, $d) rounds $n to
$p decimal places, using $t as the thousands separator
and $d as the decimal separator. For example:
<?PHP
echo "Total charge is ", number_format($total, 2, ".", ","), " Euros";
?>
The output is now 12.345,68, which swaps the period and comma, as is the norm in many European countries.
Next chapter...
What you will learn in the next chapter:
- Definition for PHP ord() Function
- Syntax for PHP ord() Function
- Parameter for PHP ord() Function
- Return for PHP ord() Function
- Note for PHP ord() Function
- Example - Check the character ASCII value