Template Hook help in Plugins

[TheSupportForum]

Hi guys

im in a little need of support

this is my php script

PHP Code:

$date1 = '2007-11-20 08:00:00';
$date2 = date('Y-m-d H:i:s');
$ts1 = strtotime($date1);
$ts2 = strtotime($date2);
$seconds_diff = $ts2 - $ts1; 
$seconds_diff = floor($seconds_diff/3600/24); echo " Day " . $seconds_diff; echo " of the new world " 


and i need to use $template_hook[forumhome_above_forums]

i have tried

PHP Code:

$template_hook[forumhome_above_forums] .='
$date1 = '2007-11-20 08:00:00';
$date2 = date('Y-m-d H:i:s');
$ts1 = strtotime($date1);
$ts2 = strtotime($date2);
$seconds_diff = $ts2 - $ts1; 
$seconds_diff = floor($seconds_diff/3600/24); echo " Day " . $seconds_diff; echo " of the new world "
'; 


i get the following error

PHP Code:

Parse error:  syntax error, unexpected T_LNUMBER in /includes/class_bootstrap.php(430) : eval()'d code on line 10 


but can't see where i have gone wrong, can someone help ?