$categories = get_terms('category', Array('hide_empty' => false)); print_r($categories); Array ( [0] => stdClass Object ( [term_id] => 7 [name] => サッカー [slug] => anime [term_group] => 0 [term_taxonomy_id] => 7 [taxonomy] => category [description] => [parent] => 0 [count] => 0 ) [1] => stdClass Object ( [term_id] => 1 [name] => 未分類 [slug] => %e6%9c%aa%e5%88%86%e9%a1%9e [term_group] => 0 [term_taxon