PHP - Formatting Numbers with number

Introduction

PHP's number_format() function formats numbers with thousands separators and rounded to a specified number of decimal places.

In its most basic form, pass the number to format as a single argument, and the function returns the formatted string:

<?php
   echo number_format(1234567.89); // Displays "1,234,568"
?>

This rounds to the nearest whole number.

If you'd rather include some decimal places, specify the number of places as a second, optional argument:

<?php

echo number_format(1234567.89, 1); // Displays "1,234,567.9"
?>/*from   ww  w  .j a va2 s  .  c  o  m*/

You can change the characters used for the decimal point and thousands separator by passing two more optional arguments.

The following code formats the number using the French convention of a comma for the decimal point and a space for the thousands separator:

<?php

echo number_format(1234567.89, 2, ",", " "); // Displays "1 234 567,89"
?>// w  w w .ja  va 2  s. com

You can pass empty strings for either of these two parameters, so you can format a number with no thousands separators if you like:

<?php

echo number_format(1234567.89, 2, ".", ""); // Displays "1234567.89"
?>/*w ww .  ja v a2  s. com*/