在 php 中使用包含
我有一个名为 header （我的网站的标题）的文件。我在我的所有网站中使用该文件。问题是它有这样的include：
include_once("../untitled/sanitize_string.php");
这意味着可能会抛出错误，具体取决于谁调用头文件。
我有目录、子目录和子目录的子目录..有没有一种简单的方法可以防止这种情况发生..而不是采用 satize 字符串包含并将其放在每个页面上而不是放在头文件中
Warning: require_once(/untitled/sanitize_string.php) [function.require-once]: failed to open stream: No such file or directory in C:\xampp\htdocs\PoliticalForum\StoredProcedure\User\headerSite.php on line 7
致命错误：require_once() [ function.require]: 无法打开所需的 '/untitled/sanitize_string.php' (include_path='.;C:\xampp\php\PEAR')第 7 行 C:\xampp\htdocs\PoliticalForum\StoredProcedure\User\headerSite.php
I have a file that is called header (the header of my site).. I use that file in all my site. The problem is that it has this include in it:
include_once("../untitled/sanitize_string.php");
which means that a mistake may be thrown, depending on who calls the header file.
I have directories, subdirectories and subdirectories to the subdirectories.. is there a simple way to prevent this from happening.. Instead of taking the satize string include and placing it on every page and not in the header file
Warning: require_once(/untitled/sanitize_string.php) [function.require-once]: failed to open stream: No such file or directory in C:\xampp\htdocs\PoliticalForum\StoredProcedure\User\headerSite.php on line 7
Fatal error: require_once() [function.require]: Failed opening required '/untitled/sanitize_string.php' (include_path='.;C:\xampp\php\PEAR') in C:\xampp\htdocs\PoliticalForum\StoredProcedure\User\headerSite.php on line 7
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您可以考虑设置全局 包含路径使用包含。
You may consider setting a global include path while using include.
对于 php 5.3，您可以执行以下操作：
其中
__DIR__是当前文件的目录对于旧版本，您可以使用
where
__FILE__是当前文件的路径假设您有以下结构：
如果您的
header.php包含具有如下相对路径的santitize_script.php：php 解释器将尝试将该文件相对地包含到当前工作目录因此，如果您执行像
http://localhost/header.php这样的请求，它将尝试包含/app/path/public/../untitled/sanitize_string.php< /code> 就可以了。但是，如果您尝试执行类似
http://localhost/user/profile.php的请求，并且 profile.php 包含 header.php，则 header.php 将尝试包含中的文件>/app/path/public/user/../untitled/sanitize_string.php这将不再起作用。 （/app/path/public/user现在是当前工作目录）这就是为什么在包含文件时使用绝对路径是一个好习惯。在
header.php中使用时，__DIR__和__FILE__常量将始终具有相同的值：/app/path/public< /code> 和/app/path/public/header.php分别，无论此后在何处使用header.phpFor php 5.3 you can do:
where
__DIR__is the directory for the current fileFor older versions you can use
where
__FILE__is the path for the current fileLets say you have the following structure:
If your
header.phpincludessantitize_script.phpwith a relative path like so:the php interpreter will try to include that file RELATIVELY to the current working dir so if you will do a request like
http://localhost/header.phpit will try to include it from/app/path/public/../untitled/sanitize_string.phpand it will work.But if you will try to do a request like
http://localhost/user/profile.phpand profile.php includes header.php, than header.php will try to include the file from/app/path/public/user/../untitled/sanitize_string.phpand this will not work anymore. (/app/path/public/userbeeing the current working dir now)That's why is a good practice to use absolute paths when including files. When used in
header.php, the__DIR__and__FILE__constants will always have the same values:/app/path/publicand/app/path/public/header.phprespectively no matter whereheader.phpwill be used thereafter使用绝对路径...
Use absolute path...
正如 yes123 所说，使用绝对路径。
Use absolute path as yes123 said.
您必须在这里使用绝对路径，而不是相对路径。我经常使用旧的服务器变量设置一些常量来表示重要的目录。像这样：
define('MY_DIR',$_SERVER['DOCUMENT_ROOT'].'/path/to/yer/dir');然后，修改您的 include 语句：
include_once(MY_DIR. '/your_file.php');You're going to have to use absolute paths here, as opposed to relative. I often set up some constants to represent important directories, using the old Server vars. Like so:
define('MY_DIR',$_SERVER['DOCUMENT_ROOT'].'/path/to/yer/dir');Then, modify your include statement:
include_once(MY_DIR.'/your_file.php');