bla.php

<?php 


function artroom_cron_send_mail($items){
	
	if(empty($items))
		return;
	
	$link = url("user/login", array("absolute" => true));
	
	foreach($items as $item){
		$item = array_merge($item, array("link" => $link));
		$body = theme('art_email', $item);
		dpm($body);
	}
	

}

function artroom_cron_theme() {
  return array(
    'art_email' => array(
      'variables' => array(
      	'link' => url("<front>", array("absolute" => true)),
      	'teacher' => "",
      	'total' => "",
      ),
      'path' => drupal_get_path('module', 'artroom_cron') .'/templates',
      'template' => 'art-email.tpl.php'
    ),
  );
}