Question

I need to get an associated array of terms in drupal that has node associated with it. However, I can t seem to figure it out the appropriate algorithm.

What I want is something like taxonomy_get_tree(). But, only term that has associated node with it.

Answer 1

This query will get the term ids for you.

db_query("SELECT DISTINCT tid FROM {term_node}");

Answer 2

The following code should do exactly what you re after.

$terms = array();
$result = db_query("SELECT * FROM {term_data} WHERE tid IN (SELECT DISTINCT(tid) FROM {term_node})");
while($term = db_fetch_object($result)) {
  $terms[] = $term;
}

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