Spliting up numbers?

[Rawns]

This code counts how many times a page has been opened. The number is saved in 'hitcounter.txt' and displays the number on a page like this:

12345678

I would like them to be displayed like this:

12,345,678

How can I do this?

This is the code used:

[code]<?php
$count_my_page = ("hitcounter.txt");
$hits = file($count_my_page);
$hits[0] ++;
$fp = fopen($count_my_page , "w");
fputs($fp , "$hits[0]");
fclose($fp);
echo $hits[0];
?>[/code]

[Barand]

See http://www.php.net/number_format

[code]$hits = 1234567;

echo number_format($hits, 0);[/code]