PHP/Development/Number Format

Number format for current

<?php
     $shoe_price = 86749.9500001;
     print($shoe_price . "\n");
     print("\$" . number_format($shoe_price, "2", ".", "") . "\n");
?>

Number format function prototype

<?
string number_format(float number, int decimals, string dec_point, string
    thousands_sep)
?>
Argument        Description
number          Number to be formatted
decimals        Precision: number of decimal places 
dec_point       String used for the decimal point (in North America, usually a period)
thousands_sep   String to separate groups of thousands (in North America, usually a comma)

Number with dot

<?
echo number_format("12156688","2",".",",");
?>