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                [toc] # 準備好后端的現成套路 后端上,Codeigniter4已經提供了一個美好的函數來實現文件夾的遞歸讀取,簡單來說,就是文件夾里面的文件夾里面的文件夾里面的……都能讀取。 得益于php7對GBK中文目錄的支持,codeigniter的 `Filesystem Helper` ,就能得到全部目錄(包含子目錄)的數組: [https://bcit-ci.github.io/CodeIgniter4/helpers/filesystem_helper.html](https://bcit-ci.github.io/CodeIgniter4/helpers/filesystem_helper.html) Sub-folders contained within the directory will be mapped as well. If you wish to control the recursion depth, you can do so using the second parameter (integer). A depth of 1 will only map the top level directory: 第二個參數為遞歸深度,當深度設置為1的時候,只會顯示該文件夾的根目錄文件: ```php $map = directory_map('./mydirectory/', 1); ``` By default, hidden files will not be included in the returned array. To override this behavior, you may set a third parameter to true (boolean): 默認情況下,隱藏文件不會顯示到數組中。當需要的時候,將第三個參數設置為True。 ```php $map = directory_map('./mydirectory/', FALSE, TRUE); ``` Each folder name will be an array index, while its contained files will be numerically indexed. Here is an example of a typical array: 返回的數組樣式: ```php Array ( [libraries] => Array ( [0] => benchmark.html [1] => config.html ["database/"] => Array ( [0] => query_builder.html [1] => binds.html [2] => configuration.html [3] => connecting.html [4] => examples.html [5] => fields.html [6] => index.html [7] => queries.html ) [2] => email.html [3] => file_uploading.html [4] => image_lib.html [5] => input.html [6] => language.html [7] => loader.html [8] => pagination.html [9] => uri.html ) ``` # 準備好前端的現成套路 采用 [zui.sexy](http://zui.sexy/) 的 「樹形菜單」現成方案。 [http://zui.sexy/#view/tree](http://zui.sexy/#view/tree) ![](https://box.kancloud.cn/3f3502ee47da8d80de697c98444345ed_710x435.png) # 在Codeigniter中開工 首先,我在 `e:\xampp\htdocs\public\data\` 中新建了如下文件和文件夾,我日后的所有文件都會放在 `data` 這個文件夾中: ``` data --20171015\ ---- a.txt ---- b.txt ---- c.txt --20171016\ ---- a.txt ---- b.txt ---- c.txt --20171017\ ---- a.txt ---- b.txt ---- c.txt --20171018\ ---- a.txt ---- b.txt ---- c.txt ``` 然后,我在 `Controller` 中新建一個 `Kanban.php`: `e:\xampp\htdocs\application\Controllers\Kanban.php` ``` <?php namespace App\Controllers; use CodeIgniter\Controller; class Kanban extends Controller{ function __construct(){ helper('filesystem'); } public function index(){ $map = directory_map('./'); d($map); } }//kanban ``` `directory_map('./')` 里面的 `./` 表示 `e:\xampp\htdocs\public\` ; 所以,當我要顯示 `public\data` 文件夾內容的時候: ``` $map = directory_map('./data'); ``` ![](https://box.kancloud.cn/d302b9952d7139be10dd6f7a96683b61_641x310.png) (完)
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