PHP 에서 숫자 표현

<?php

$number = 1234.56;

// english notation (default)

$english_format_number = number_format($number);

// 1,235

// French notation

$nombre_format_francais = number_format($number, 2, ',', ' ');

// 1 234,56

$number = 1234.5678;

// english notation without thousands separator

$english_format_number = number_format($number, 2, '.', '');

// 1234.57

?>

** 출처 : http://php.net/manual/en/function.number-format.php