get path of taxonomy term id drupal

<?php// first, get a term object from a term ID


$term = taxonomy_get_term($tid);


// then, use the term object to get the unaliased path


$taxonomy_path = taxonomy_term_path($term);


// finally, lookup the path alias using drupal_lookup_path()


$taxonomy_path_alias = drupal_lookup_path('alias', $taxonomy_path);


?>

For Drupal 7 you can use: taxonomy_term_uri()

<?php


$term = taxonomy_term_load($tid); // load term object


$term_uri = taxonomy_term_uri($term); // get array with path


$term_title = taxonomy_term_title($term);


$term_path = $term_uri['path'];


$link = l($term_title,$term_path);


?>

or simple soution

url('taxonomy/term/' . $tid);