This mini tutorial guides you through the steps required to create a view that:

1. determines which taxonomy terms are associated with the current node such as a news item
2. combines these terms into a default View Argument for Term ID

The result is a list with nodes which match at least one of the terms. So if your node is linked to term A and B, the list will contain items linked to A or to B.

Versions used: Drupal 6.10 with Views 6.x-2.3

• Create a View
• Add a Field Node > Title
  • Remove the label and check: Link this field to its node
• If you like, add Sort criteria such as Node: Title with Sort order: Ascending
• Add an Argument Taxonomy > Term ID
  • Action to take if argument is not present: Provide default argument
  • Default argument type: PHP code

$node = node_load(arg(1));
if ($node->taxonomy) { // Does it have terms?
  foreach ($node->taxonomy as $term) {
    $terms[] = $term->tid;
  }
  return implode('+', $terms);
} else {
  return;
}

• Validator: Default Validator
• Allow multiple terms per argument: checked
• Reduce duplicates: checked