Includes a file with the provided type and name.
This prevents including a theme, engine, module, etc., more than once.
$type: The type of item to load (i.e. theme, theme_engine, module).
$name: The name of the item to load.
TRUE if the item is loaded or has already been loaded.
function drupal_load($type, $name) {
// Once a file is included this can't be reversed during a request so do not
// use drupal_static() here.
static $files = array();
if (isset($files[$type][$name])) {
return TRUE;
}
$filename = drupal_get_filename($type, $name);
if ($filename) {
include_once DRUPAL_ROOT . '/' . $filename;
$files[$type][$name] = TRUE;
return TRUE;
}
return FALSE;
}