How to Show a Number to Two Decimal Places in PHP

1. Use number_format() Function to Show a Number to Two Decimal Places in PHP
2. Use round() Function to Show a Number to Two Decimal Places in PHP
3. Use sprintf() Function to Show a Number to Two Decimal Places in PHP

In this article, we will introduce methods to show a number to two decimal places in PHP.

• Using number_format() function
• Using round() function
• Using sprintf() function

Use number_format() Function to Show a Number to Two Decimal Places in PHP

The built-in function number_format() is used to format a number. By formatting, we mean that the number is displayed with a decimal point and a thousand separator. It also rounds a number if needed. We can use this function to show a number to two decimal places. The correct syntax to use this function is as follows

number_format($number, $NumOfDecimals, $decimalIndicator, $thousandSeparator)

Example Codes:

<?php
$number1 = 5;
$number2 = 34.600;
$number3 = 15439.093;
$format_number1 = number_format($number1, 2);
$format_number2 = number_format($number2, 2);
$format_number3 = number_format($number3, 2, "d", "@");
echo "The number $number1 after formating is: $format_number1 \n";
echo "The number $number2 after formating is: $format_number2 \n";
echo "The number $number3 after formating is: $format_number3 \n";
?>

This function has three optional parameters but it does not allow three parameters. It allows one, two, and four parameters to be passed. In this example, the $number1 and $number2 are formatted to two decimal places with the default decimal point. But $number3 is formatted with custom decimal point "d" and thousand separator "@".

Output:

The number 5 after formating is: 5.00 
The number 34.6 after formating is: 34.60 
The number 15439.093 after formating is: 15@439d09

Use round() Function to Show a Number to Two Decimal Places in PHP

The round() function is used to round a number or float value. We can round a number to our desired decimal places. The correct syntax to use this function is as follows

round($number, $decimalPlaces, $mode);

Example Codes:

<?php
$number1 = 5;
$number2 = 34.6;
$number3 = 15439.093;
$format_number1 = round($number1, 2);
$format_number2 = round($number2, 2);
$format_number3 = round($number3, 2);
echo "The number $number1 after rounding is: $format_number1 \n";
echo "The number $number2 after rounding is: $format_number2 \n";
echo "The number $number3 after rounding is: $format_number3 \n";
?>

The important thing to note here is that it does not affect a number or a float value with one decimal point if we want to round these to two decimal places.

Output:

The number 5 after rounding is: 5 
The number 34.6 after rounding is: 34.6 
The number 15439.093 after rounding is: 15439.09

Use sprintf() Function to Show a Number to Two Decimal Places in PHP

The built-in function sprintf() formats a string according to a given format. It can be used to show a number to two decimal places. The correct syntax to use this function is as follows

sprintf($format, $parameter1, $parameter2, ... , $parameterN);

The parameter $format is the format that specifies how the variables will be in the string. The next parameter $parameter1 is the first variable whose value will be assigned to the first % in the string. The parameter $parameter2 is the second variable whose value will be assigned to the second % in the string. In this way, we can insert N variables for N % signs.

<?php
$num = 67;
$number = sprintf('%.2f', $num);
echo "The number upto two decimal places is $number";
?>

Here, we have used %f for a float value. %.2f indicates that the float value will be up to two decimal places.

Output:

The number up to two decimal places is 67.00