require_once（）链接超出子目录时出错[关闭]

Question

I am trying to require_once() a file that is in a folder located in my root... I am requiring this file from a file that is in another sub-folder of my root.

• Root

  • includes

    • include_all.php

  • my

    • question_history.php

This is my/question_history.php:

 <?php require_once("./includes/include_all.php"); ?>

I am getting these errors:

Warning: require_once(./includes/include_all.php) [function.require-once]: failed to open stream: No such file or directory in /Applications/XAMPP/xamppfiles/htdocs/AnswerTree2/my/question_history.php on line 3

Fatal error: require_once() [function.require]: Failed opening required './includes/include_all.php' (include_path='.:/Applications/XAMPP/xamppfiles/lib/php:/Applications/XAMPP/xamppfiles/lib/php/pear') in /Applications/XAMPP/xamppfiles/htdocs/AnswerTree2/my/question_history.php on line 3

I am kinda new to keeping files in different folders as I used to just put everything in root folder. bad practice i know. but anyway hope this is enough detail.

Answer 1

The right code would be:

<?php require_once("../includes/include_all.php"); ?>

The error comes, becouse ./ requires the file to be in the same folder, so your code would require the includes folder be in the my folder.