PHP: Execute cacls.exe

I would like to know how to change the file permissions of a directory on Windows Home Server using PHP script? I read some where on Internet about CACLS command. But I don't know how to use CACLS command in PHP script. Can you help me to assign a new file permissions to certain directories?

To launch an external program, use the exec function.

Description

exec — Executes an external program

Syntax

Code:

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string exec (string $command [, array &$output [, int &$return_var]])

---

where,

command: The command that will be executed.
output: If the output argument is present, then the specified array will be filled with every line of output from the command.
return_var: If the return_var argument is present along with the output argument, then the return status of the executed command will be written to this variable.

Example

PHP Code:

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<?php
echo exec('whoami');
?>

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This gives the username that owns the running php/httpd process

cacls is a small Windows utility that allows you to display and modify access control on your files and folders. You can use this utility with the exec function using the PHP script as follow:

PHP Code:

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<?php
$cmd = "c:\windows\system32\cacls.exe ".$filepath." /e /g ".$username.":F";
echo $cmd;
$result = exec($cmd);
?>

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