What is root directory in php

Php what is echo root path in php

For example: You can use absolute path for include which you can define and use Include files from parent or other directory Use to Find the Document Root Directory of a File in PHP We can use the array with the indices to find the document root directory of the currently executing script.

Get Root Directory Path of a PHP project

For PHP >= 5.3.0 try

And make your path relative.

Then D: is what you are looking for, isn’t it? In that case you could explode the string by slashes and return the first one:

$pathInPieces = explode('/', $_SERVER['DOCUMENT_ROOT']); echo $pathInPieces[0]; 

This will output the server’s root directory.

Update: When you use the constant DIRECTORY_SEPARATOR instead of the hardcoded slash ( ‘/’ ) this code is also working under Windows.

Update 2: The $_SERVER global variable is not always available. On command line (cli) for example. So you should use __DIR__ instead of $_SERVER[‘DOCUMENT_ROOT’] . __DIR__ returns the path of the php file itself.

Gets the current working directory.

Detect root folder with php, use $_SERVER[‘DOCUMENT_ROOT’] but its always better to create a config.php file and save it in your root directory.

Get Root Directory Path of a PHP project?

In order to get the root directory path, you can use _DIR_ or dirname().

The second syntax is as follows−

Both the above syntaxes will return the same result.

Example

Output

PHP getting document path relative to site root, Have you tried looking at the generated source code? $_SERVER[‘DOCUMENT_ROOT’] returns the document root directory under which the current script is executing.

What is a root directory in PHP?

In order to get the root directory path, you can use _DIR_ or dirname(). echo dirname(__FILE__); Both the above syntaxes will return the same result.

What is meant by root directory?

In a computer file system, and primarily used in the Unix and Unix-like operating systems, the root directory is the first or top-most directory in a hierarchy. It can be likened to the trunk of a tree, as the starting point where all branches originate from.

What is a root directory of a website?

The root directory of your website holds the content that loads when visitors type your domain name in a browser. For example, you need to put your index file in your website’s root directory for visitors to see your site. Website-related applications might also need to know your website’s root directory.

Where is my php directory?

How To Check PHP Version And PHP Install Path On Linux And…

1. Check PHP Install Path On Linux. The whereis command returns the executable file path. …
2. Check PHP Install Path On Windows. …
3. Check Current PHP Version. …
4. Use phpinfo() Function To Get PHP Version & PHP Install Path.

How can I get root URL in php?

1. $root = (! …
2. $parsedUrl = parse_url(‘http://localhost/some/folder/containing/something/here/or/there’); $root = $parsedUrl[‘scheme’] . …
3. $url = ‘http://user:pass@localhost:80/some/folder/containing/something/here/or/there’; $parsedUrl = parse_url($url); $root = strstr($url, $parsedUrl[‘path’], true) . ‘/’;

How do I set the root directory?

While all file systems have a root directory, it may be labeled differently depending on the operating system. For example, in Windows, the default root directory is C:. On Unix systems and in OS X, the root directory is typically labeled simply / (a single forward slash).

What is file system root?

The root file system is the top of the hierarchical file tree. It contains the files and directories critical for system operation, including the device directory and programs for booting the system.

Is C the root directory?

The root directory, or root folder, describes the uppermost folder on a hard drive partition. If your business computer contains a single partition, this partition will be the “C” drive and contains many system files.

What is root folder in HTML?

Root directory of a website

The root directory, also known as the document root, web root, or site root directory, is the publicly accessible base folder of a website. This folder contains the index file (index. php, index. html or default. html) and is often named public_html, htdocs, www or wwwroot.

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Find Root Directory Path in PHP

1. Use the __DIR__ Predefined Constant to Find the Path of the Directory of a File in PHP
2. Use the dirname() Function to Find the Path of the Root Directory of a Project in PHP
3. Use $_SERVER[‘DOCUMENT_ROOT’] to Find the Document Root Directory of a File in PHP

We will introduce different methods to find the path of the root directory of a PHP project.

Use the __DIR__ Predefined Constant to Find the Path of the Directory of a File in PHP

In PHP, there are predefined constants that can be used to achieve various functionalities. __DIR__ is one magical constant that returns the complete file path of the current file from the root directory. It means it will return the file’s directory. dirname(__FILE__) can also be used for the same purpose.

Suppose we have a project folder which is the root directory of the project. The project folder has the following file path /var/www/HTML/project . Inside the project folder, we have the index.php file and another folder master . Inside the master folder, we have two PHP files: login.php and register.php .

project ├── index.php └── master  ├── login.php  └── register.php 

Suppose we are currently working on login.php . In such a file structure, we can get the directory’s path using the __DIR__ constant in the login.php file. We can use the echo function to print the constant.

Use the dirname() Function to Find the Path of the Root Directory of a Project in PHP

The function dirname(__FILE__) is similar to __DIR__ . We can find the path of the directory of a file using this function. We can also move to the upper levels in the file path using the dirname() function. The first parameter of the function is the path of the file, which is denoted by the __FILE__ constant. The second parameter is an integer which is called levels. We can set the levels to direct the function to level up in the file path. The default value of the level is 1 . As we increase the level, the function will get the file path of one level up. So, we can use this function to find the exact file path of the project’s root directory in PHP.

For example, we can consider the file structure as the first method. Working from the file, login.php , we can use the dirname() function with level 2 and the __FILE__ constant as parameters. Then we can get the exact file path of the working directory. Thus, we can change the levels according to our choice to move upward and downward in the file path. In this way, we can find the path of the root directory of the project in PHP.

php echo dirname(__FILE__,2); ?> 

Use $_SERVER[‘DOCUMENT_ROOT’] to Find the Document Root Directory of a File in PHP

We can use the $_SERVER[] array with the DOCUMENT_ROOT indices to find the document root directory of the currently executing script. It will return the complete path of the document root directory. It is defined in the configuration file in the server. For the file structure above, we can print the $_SERVER[‘DOCUMENT_ROOT’] with the echo function to find the document root directory of the file login.php .

As shown in the output below, we found out the path html is the document root directory of the login.php file. We can see the file path of the root directory as well.

php echo $_SERVER['DOCUMENT_ROOT']; ?> 

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