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                # 目錄輔助函數 目錄輔助函數文件包含了一些幫助你處理目錄的函數。 [TOC=2,3] ## [加載輔助函數](http://codeigniter.org.cn/user_guide/helpers/directory_helper.html#id4) 該輔助函數通過下面的代碼加載: ~~~ $this->load->helper('directory'); ~~~ ## [可用函數](http://codeigniter.org.cn/user_guide/helpers/directory_helper.html#id5) 該輔助函數有下列可用函數: directory_map($source_dir[,?$directory_depth = 0[,?$hidden = FALSE]]) 參數: * **$source_dir**?(string) -- Path to the source directory * **$directory_depth**?(int) -- Depth of directories to traverse (0 = fully recursive, 1 = current dir, etc) * **$hidden**?(bool) -- Whether to include hidden directories 返回: An array of files 返回類型: array 舉例: ~~~ $map = directory_map('./mydirectory/'); ~~~ 注解 路徑總是相對于你的 index.php 文件。 如果目錄內含有子目錄,也將被列出。你可以使用第二個參數(整數) 來控制遞歸的深度。如果深度為 1,則只列出根目錄: ~~~ $map = directory_map('./mydirectory/', 1); ~~~ 默認情況下,返回的數組中不會包括那些隱藏文件。如果需要顯示隱藏的文件, 你可以設置第三個參數為 true ~~~ $map = directory_map('./mydirectory/', FALSE, TRUE); ~~~ 每一個目錄的名字都將作為數組的索引,目錄所包含的文件將以數字作為索引。 下面有個典型的數組示例: ~~~ 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 ) ~~~
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