[SOLVED] Stuck with a lil math.

[Demonic]

Ok I'm writing a script for my hosting company right.  Pay every 30 days type deal.

 

So I'm trying to get the total amount of days they didn't pay over thirty.

For example:

 

I paid hosting 31 days ago I want to get the amount of days they wen't over 30 they didn't pay for there hosting.  So it should echo 1 since 31-30 = 1 but I'm trying to base it on the time() function how would I go about doing this?

[Demonic]

Nvm I got it:

 

<?php
$tdaysago = time() - 2678400;//30days ago
$get = (time() - $tdaysago)/86400;
$result = $get-30;
echo $result;
?>