如何读取codeigniter文件夹外的文件

how to read file outside codeigniter folder

我有一个项目可以从外部 codeigniter 目录读取文件,但在同一台服务器中

示例:

codeigniter 文件夹路径:

opt/xampp/htdocs/yourprogramname/application

但我想从 :

读取文件

purchase/dashboard/filename.txt

我常用的代码:

  $handle = fopen("purchase/dashboard/filename.txt", "r");
  echo $handle;

  ?>

我怎么能在代码点火器中做到这一点?我知道如何从 codeigniter 中的同一目录(应用程序中的文件夹 resource/etc)读取文件但是当我尝试 ././ 或 ../ codeigniter 不会读取文件内容

使用绝对路径。试试这个,

<?php 

 $handle = fopen("/purchase/dashboard/filename.txt", "r");
 echo $handle;

?>

You can use FCPATH

application
purchase
purchase > dashboard
system
index.php

文件

<?php 

if (file_exists(FCPATH . 'purchase/dashboard/filename.txt') {

   $handle = fopen(FCPATH . 'purchase/dashboard/filename.txt', "r");

   echo $handle;

}

?>

<?php 

if (file_exists('/purchase/dashboard/filename.txt') {

   $handle = fopen('/purchase/dashboard/filename.txt', "r");

   echo $handle;

}

?>

Codeigniter 路径函数定义

EXT: The PHP file extension
FCPATH: Path to the front controller (this file) (root of CI)
SELF: The name of THIS file (index.php)
BASEPATH: Path to the system folder
APPPATH: The path to the "application" folder