number_format() function in php

PHP number_fomat() function is used to format a number with grouped thousands. It is an inbuilt function of PHP. The return type of this function is number means it returns a formatted number corresponding to the given number.

Syntax:

• $number is a number that is formatted by this function. It is mandatory.
• $decimal is used to decide the position of the decimal point. It is optional.
• $decimal_point represents a string which used for the decimal point. It is also optional.
• $separater_char represents which character is used to separate thousands. If it is a string then only the first character of string used as a separator. It is also optional but if this parameter is given then all the above parameters are required to be given.

Example:

<?php
$number=500000;
$modified_number=number_format($number);
echo "Original number is : $number <br>";
echo "Modified number is : $modified_number";
?>

Output:

Example 2:

<?php
$number=730550;
$modified_number=number_format($number,2); // rounded with 2 decimal position
echo "Original number is : $number <br>";
echo "Modified number is : $modified_number";
?>

Output: