[fn9mm]

Got it working for 1 month, however I'm experiencing probs when i want to display 2 months or more (PHP NOOB here )

Code for 1 month (working)

<?php
// change to true if you wish to use either of the following ...
$vbseo_urls = false;
$cached_technique = false;

if ($cached_technique)
{
	require 'Cache/DB.php';
}

if ($vbseo_urls)
{
	include_once "forum/includes/functions_vbseo.php"; 
}

require "thanks1-02.php";
?>
<?php
// NOTE: "$thisMonth" variable should be different for each table you're making (each instance of thanks class)
//        $string (required): Any variable name in form of a string (should be different for each table)  


// 2 months ago
$start_epoch = mktime(0, 0, 0, (date(m)-2), 1, date(Y));  // epoch for beginning of month 
$end_epoch = mktime(23, 59, 0, (date(m)-1), 0, date(Y));  // epoch for end of month 

$twoMonthsAgo = new thanks($start_epoch,$end_epoch);
$twoMonthsAgo ->grab_n_sort($string,$vbseo_url,$cached_technique); 
$twoMonthsAgo ->print_chart(10,$table_summary);
	
?>

Code for 2 months (results in blank page)

<?php
// change to true if you wish to use either of the following ...
$vbseo_urls = false;
$cached_technique = false;

if ($cached_technique)
{
	require 'Cache/DB.php';
}

if ($vbseo_urls)
{
	include_once "forum/includes/functions_vbseo.php"; 
}

require "thanks1-02.php";
?>
<?php
// NOTE: "$thisMonth" variable should be different for each table you're making (each instance of thanks class)
//        $string (required): Any variable name in form of a string (should be different for each table)  


// 2 months ago
$start_epoch = mktime(0, 0, 0, (date(m)-2), 1, date(Y));  // epoch for beginning of month 
$end_epoch = mktime(23, 59, 0, (date(m)-1), 0, date(Y));  // epoch for end of month 

$twoMonthsAgo = new thanks($start_epoch,$end_epoch);
$twoMonthsAgo ->grab_n_sort($string,$vbseo_url,$cached_technique); 
$twoMonthsAgo ->print_chart(10,$table_summary);
	
// 1 month ago	
$start_epoch = mktime(0, 0, 0, (date(m)-1), 1, date(Y)); // beginning of month epoch ex. 01/01/07 12:00 AM 
$end_epoch = mktime(23, 59, 0, (date(m)), 0, date(Y)); // end of month epoch ex. 01/31/07 11:59 PM 

$oneMonthAgo = new thanks($start_epoch,$end_epoch);  
$oneMonthsAgo ->grab_n_sort($string,$vbseo_url,$cached_technique); 
$oneMonthsAgo ->print_chart(10,$table_summary);
?>

What am I doing wrong?
I guess it has something to do with the $string ?
What should i use in stead of $string for the other months,....?
tia