Home\Controller\ItemController::word PHP Method

    public function word()
    {
        import("Vendor.Parsedown.Parsedown");
        $Parsedown = new \Parsedown();
        $item_id = I("item_id/d");
        $login_user = $this->checkLogin();
        if (!$this->checkItemPermn($login_user['uid'], $item_id)) {
            $this->message(L('no_permissions'));
            return;
        }
        $item = D("Item")->where("item_id = '{$item_id}' ")->find();
        //获取所有父目录id为0的页面
        $pages = D("Page")->where("cat_id = '0' and item_id = '{$item_id}' ")->order(" `s_number` asc  ")->select();
        //获取所有二级目录
        $catalogs = D("Catalog")->where("item_id = '{$item_id}' and level = 2  ")->order(" `s_number` asc  ")->select();
        if ($catalogs) {
            foreach ($catalogs as $key => &$catalog) {
                //该二级目录下的所有子页面
                $temp = D("Page")->where("cat_id = '{$catalog['cat_id']}' ")->order(" `s_number` asc  ")->select();
                $catalog['pages'] = $temp ? $temp : array();
                //该二级目录下的所有子目录
                $temp = D("catalog")->where("parent_cat_id = '{$catalog['cat_id']}' ")->order(" `s_number` asc  ")->select();
                $catalog['catalogs'] = $temp ? $temp : array();
                if ($catalog['catalogs']) {
                    //获取所有三级目录的子页面
                    foreach ($catalog['catalogs'] as $key3 => &$catalog3) {
                        //该二级目录下的所有子页面
                        $temp = D("Page")->where("cat_id = '{$catalog3['cat_id']}' ")->order(" `s_number` asc  ")->select();
                        $catalog3['pages'] = $temp ? $temp : array();
                    }
                }
            }
        }
        $data = '';
        $parent = 1;
        if ($pages) {
            foreach ($pages as $key => $value) {
                $data .= "<h1>{$parent}、{$value['page_title']}</h1>";
                $data .= '<div style="margin-left:20px;">';
                $data .= htmlspecialchars_decode($Parsedown->text($value['page_content']));
                $data .= '</div>';
                $parent++;
            }
        }
        //var_export($catalogs);
        if ($catalogs) {
            foreach ($catalogs as $key => $value) {
                $data .= "<h1>{$parent}、{$value['cat_name']}</h1>";
                $data .= '<div style="margin-left:20px;">';
                $child = 1;
                if ($value['pages']) {
                    foreach ($value['pages'] as $page) {
                        $data .= "<h2>{$parent}.{$child}、{$page['page_title']}</h2>";
                        $data .= '<div style="margin-left:20px;">';
                        $data .= htmlspecialchars_decode($Parsedown->text($page['page_content']));
                        $data .= '</div>';
                        $child++;
                    }
                }
                if ($value['catalogs']) {
                    $parent2 = 1;
                    foreach ($value['catalogs'] as $key3 => $value3) {
                        $data .= "<h2>{$parent}.{$parent2}、{$value3['cat_name']}</h2>";
                        $data .= '<div style="margin-left:20px;">';
                        $child2 = 1;
                        if ($value3['pages']) {
                            foreach ($value3['pages'] as $page3) {
                                $data .= "<h3>{$parent}.{$parent2}.{$child2}、{$page3['page_title']}</h3>";
                                $data .= '<div style="margin-left:30px;">';
                                $data .= htmlspecialchars_decode($Parsedown->text($page3['page_content']));
                                $data .= '</div>';
                                $child2++;
                            }
                        }
                        $data .= '</div>';
                        $parent2++;
                    }
                }
                $data .= '</div>';
                $parent++;
            }
        }
        output_word($data, $item['item_name']);
    }