/> '; } function aa_meta_save($post_id) { // authentication checks // make sure data came from our meta box if (!wp_verify_nonce($_POST['my_meta_noncename'],__FILE__)) return $post_id; // check user permissions if ($_POST['post_type'] == 'page') { if (!current_user_can('edit_page', $post_id)) return $post_id; } // authentication passed, save data // var types // single: aa_page_meta[var] // array: aa_page_meta[var][] // grouped array: aa_page_meta[var_group][0][var_1], aa_page_meta[var_group][0][var_2] $current_data = get_post_meta($post_id, 'aa_page_meta', TRUE); $new_data = $_POST['aa_page_meta']; my_meta_clean($new_data); if ($current_data) { if (is_null($new_data)) delete_post_meta($post_id,'aa_page_meta'); else update_post_meta($post_id,'aa_page_meta',$new_data); } elseif (!is_null($new_data)) { add_post_meta($post_id,'aa_page_meta',$new_data,TRUE); } return $post_id; } function my_meta_clean(&$arr) { if (is_array($arr)) { foreach ($arr as $i => $v) { if (is_array($arr[$i])) { my_meta_clean($arr[$i]); if (!count($arr[$i])) { unset($arr[$i]); } } else { if (trim($arr[$i]) == '') { unset($arr[$i]); } } } if (!count($arr)) { $arr = NULL; } } } ?>