/**
* 获得指定分类同级的所有分类以及该分类下的子分类
*
* @access  public
* @param   integer     $cat_id     分类编号
* @return  array
*/
function get_categories_tree($cat_id = 0)
{if ($cat_id > 0){$sql = 'SELECT parent_id FROM ' . $GLOBALS['ecs']->table('category') . " WHERE cat_id = '$cat_id'";$parent_id = $GLOBALS['db']->getOne($sql);}else{$parent_id = 0;}/*判断当前分类中全是是否是底级分类，如果是取出底级分类上级分类，如果不是取当前分类及其下的子分类*/$sql = 'SELECT count(*) FROM ' . $GLOBALS['ecs']->table('category') . " WHERE parent_id = '$parent_id' AND is_show = 1 ";if ($GLOBALS['db']->getOne($sql) || $parent_id == 0){/* 获取当前分类及其子分类 */$sql = 'SELECT cat_id,cat_name ,parent_id,is_show ' .'FROM ' . $GLOBALS['ecs']->table('category') ."WHERE parent_id = '$parent_id' AND is_show = 1 ORDER BY sort_order ASC, cat_id ASC";$res = $GLOBALS['db']->getAll($sql);foreach ($res AS $row){if ($row['is_show']){/*获得分类下商品总数 begin-老杨：QQ359199843 */$children = get_children($row['cat_id']);$sql = 'SELECT count(*)' . "FROM " . $GLOBALS['ecs']->table('goods') . ' AS g '.'WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND '.'g.is_delete = 0 AND (' . $children . 'OR ' . get_extension_goods($children) . ') ';$cat_goods_num=$GLOBALS['db']->getOne($sql);$cat_arr[$row['cat_id']]['goods_num']   = $cat_goods_num == '' ? 0 : $cat_goods_num;$cat_arr[$row['cat_id']]['id']   = $row['cat_id'];$cat_arr[$row['cat_id']]['name'] = $row['cat_name'];$cat_arr[$row['cat_id']]['url']  = build_uri('category', array('cid' => $row['cat_id']), $row['cat_name']);if (isset($row['cat_id']) != NULL){$cat_arr[$row['cat_id']]['cat_id'] = get_child_tree($row['cat_id']);}}}}if(isset($cat_arr)){return $cat_arr;}
}function get_child_tree($tree_id = 0)
{$three_arr = array();$sql = 'SELECT count(*) FROM ' . $GLOBALS['ecs']->table('category') . " WHERE parent_id = '$tree_id' AND is_show = 1 ";if ($GLOBALS['db']->getOne($sql) || $tree_id == 0){$child_sql = 'SELECT cat_id, cat_name, parent_id, is_show ' .'FROM ' . $GLOBALS['ecs']->table('category') ."WHERE parent_id = '$tree_id' AND is_show = 1 ORDER BY sort_order ASC, cat_id ASC";$res = $GLOBALS['db']->getAll($child_sql);foreach ($res AS $row){/*获得分类下商品总数 begin-老杨：QQ359199843 */$children = get_children($row['cat_id']);$sql = 'SELECT count(*)' . "FROM " . $GLOBALS['ecs']->table('goods') . ' AS g '.'WHERE g.is_on_sale = 1 AND g.is_alone_sale = 1 AND '.'g.is_delete = 0 AND (' . $children . 'OR ' . get_extension_goods($children) . ') ';$cat_goods_num=$GLOBALS['db']->getOne($sql);$three_arr[$row['cat_id']]['goods_num']   = $cat_goods_num == '' ? 0 : $cat_goods_num;if ($row['is_show'])$three_arr[$row['cat_id']]['id']   = $row['cat_id'];$three_arr[$row['cat_id']]['name'] = $row['cat_name'];$three_arr[$row['cat_id']]['url']  = build_uri('category', array('cid' => $row['cat_id']), $row['cat_name']);if (isset($row['cat_id']) != NULL){$three_arr[$row['cat_id']]['cat_id'] = get_child_tree($row['cat_id']);}}}return $three_arr;
}