Directory Functions in PHP

Introduction

This article explains Directories in PHP; how to show or get all the information about directories and contents. For this I use the important and useful functions such as chdir(), chroot(), dir(), closedir(), getcwd(), opendir(), readdir(), rewinddir() and scandir(). I discuss them step-by-step. The directory functions are parts of the PHP core.

Syntax

chroot(directory);

Parameter	Description
Directory	Required specifies new root directory.

Example

This function basically changes the root directory of the current process and this function returns true on success otherwise returns false. This function does not work on the Windows platform since Wndows does not have equivalent functionality.

<?php

chroot("/path/to/your/chroot/");

echo getcwd();

?>

Output

/

Syntax

chdir(directory);

Parameter	Description
Directory	Required. Specifies the directory to change to.

Example

This function changes the current directory.

<?php

//get current dire

echo getcwd();

echo "<br />";

//change to the file dir

chdir("gallery");

echo "<br />";

echo getcwd();

?>

Output