PHP dirname: Directory Path Extraction

In PHP, the purpose of the dirname() function is to retrieve the directory part of a specified path. Specifically, the dirname() function takes a string parameter, which is typically a file path, and then returns the directory part of that file path, which is the path without the file name.

Here is a simple example demonstrating the use of the dirname() function.

<?php
$path = "/var/www/html/index.php";
$directory = dirname($path);
echo "Directory path: " . $directory;
?>

In the given example, if we were to execute this code, it would output /var/www/html as the dirname() function returns the directory portion of the given path /var/www/html/index.php.

In conclusion, the dirname() function in PHP is used to extract the directory part of a path and can assist you in handling operations related to file paths.