我一直在面对PHP包含的问题.基于互联网上的阅读,我一直在使用相对路径来灵活处理.

只要我直接在每个文件中引用路径,例如

require_once '../includes/connection.php'; // it works fine.

当我使用全局常量引用此路径时,问题就开始了

require_once getDocumentRoot() . '/includes/connection.php',

正如它说以下错误.

Warning: require_once(/phpPractices/myApp/includes/connection.php): failed to open stream: No such file or directory in /Applications/XAMPP/xamppfiles/htdocs/phpPractices/myApp/dir1/list.php on line 19".

我在SO中阅读了这么多线程,并遵循以下建议

>使用文件的基本目录将常量定义为DOCUMENT_ROOT. (就像在SO中这样说-> https://stackoverflow.com/a/22912261/1001242)

>还尝试了各种选项,例如DIR,basedir(FILE)等,

>通过set_include_path()方法将我的应用程序目录(/ phpPractices / myApp)添加到include_path(如PHP, How to set include path和http://php.net/manual/en/function.set-include-path.php中所述)

我的函数getDocumentRoot()定义如下.

function getDocumentRoot()

{

$loc_pos_2 = strpos($_SERVER['REQUEST_URI'], "/", 1);

$baseDir = substr($_SERVER['REQUEST_URI'], 0, $loc_pos_2);

$baseDir = $baseDir . "/myApp";

return $baseDir;

}

注意：我可以看到该文件实际存在.但是,file_exists()方法返回false,我不明白为什么.可能是引起关注的原因吗？

仅供参考,我的目录结构如下.

htdocs

phpPractices

myApp --> Web App Root

includes

connection.php

inc

header.php

footer.php

global.php -- contains getDocumentRoot() method and included in header.php

index.php

dir1 --> my module specific dir

list.php --> which needs 'connection.php'

我的list.php包含以下内容

include_once '../inc/header.php'; // it works fine as I do relative to the path

//require_once '../includes/connection.php'; //works fine

require_once getDocumentRoot() . '/includes/connection.php'; // FAILS! :(

?>

但是没有帮助！任何摆脱这个问题的建议将不胜感激.

提前致谢！

解

感谢所有答复的人们.我有一个新的解决方法可以帮助我:)

1. For all the menu items with links:

I use my getDocumentRoot() method which provides me -

'/phpPractices/myApp/' --> which is relative to my Web App.

2. For all the include, require functions :

I defined a different constant as below & as per this link:

https://stackoverflow.com/a/1488293/1001242

define('APP_BASE_PATH', $_SERVER['DOCUMENT_ROOT'] . '/myApp');

which returns me the complete absolute path which works fine for file inclusion.

我一直在干预这两者.对于文件包含,getDocumentRoot()的“ / phpPractices / myApp”输出失败,因为它试图在根目录(“ / phpPractices /”)中找到名为“ phpPractices”的目录,这是根本原因.因此,我将它们分为两部分,现在工作正常.

感谢大家.非常感激.

解决方法:

更新您的getDocumentRoot()函数以返回绝对路径

function getDocumentRoot()

{

return dirname(__FILE__);

}

或在您的需求中使用dirname(__ FILE__)

标签：absolute-path,php,include,global

来源： https://codeday.me/bug/20191009/1877853.html