<?php

// your code goes here

$price = 120000;
$price = round(($price / 100), 2);

echo $price;
echo "\n";
echo number_format($price, 2, '.', '');

echo "\n";


// 使用辅助函数
$price = 120000;
function fenToYuan($price)
{
	$price = round(($price / 100), 2);
	return number_format($price, 2, '.', '');
}

echo fenToYuan($price);