PHP Function chgrp()

Syntax

bool chgrp ( string $filename, mixed $group );

Attempts to change the group of the file filename to group.

Parameter	Description
filename	Path to the file.
group	A group name or number.

Returns TRUE on success or FALSE on failure.

Following is the usage of this function:

<?php
$filename = "/home/httpd/html/index.php";
chgrp ( $filename, "guest" );
?>