Pass variable from function to template I want to pass a variable from a mymodule_preprocess_node(&amp;$vars) to my template file.
Something as simple as the following:

function mymodule_preprocess_node(&amp;$vars) {
  $vars['node_type'] = 'some_type';
}


I trying to pass this variable to a zone--content.tpl.php file.

PS: Cleared all the caches :)
To pass variables to the zone template, you need to preprocess the zone, not the node

function mymodule_preprocess_zone(&amp;$vars) {
  $vars['node_type'] = 'some_type';
}