PHP Exercises : Get the document root directory as defined in the server's configuration file

Last update on December 20 2024 10:23:48 (UTC/GMT +8 hours)

Write a PHP script to get the document root directory under which the current script is executing, as defined in the server's configuration file.

Sample Solution:

PHP Code:

<?php
// getenv() gets the value of an environment variable named 'DOCUMENT_ROOT'
$rd = getenv('DOCUMENT_ROOT');

// Echo the value of the 'DOCUMENT_ROOT' environment variable
echo $rd . "\n";
?>

Explanation:

• Get Environment Variable:
• The getenv('DOCUMENT_ROOT') function retrieves the value of the environment variable named DOCUMENT_ROOT. This variable typically contains the root directory of the web server where the current script is running.
• Store Value:
• The retrieved value is stored in the variable $rd.
• Output the Document Root:
• The echo statement outputs the value of $rd, which represents the document root directory, followed by a newline (\n).

Output:

I:/Ampps/www

Flowchart:

PHP Code Editor:

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