Global vars
The global variables conserve their value and they are independent of the instances of the div class.
Syntax in PHP
<?php
div::setGlobal('var-name', $mixed_value);
Example
index.php
<?php
div::setGlobal('today', date('Y-m-d'));
echo new div('index.tpl', [
'name' => 'Peter'
]);
echo new div('index.tpl', [
'name' => 'Jack'
]);
index.tpl
Hello {$name}
Today is: {$today}
Output
Hello Peter
Today is 2012-08-17
Hello Jack
Today is 2012-08-17