(PHP 5 >= 5.1.2)
lchgrp — Changes group ownership of symlink
Attempts to change the group of the symlink filename to group.
Only the superuser may change the group of a symlink arbitrarily; other users may change the group of a symlink to any group of which that user is a member.
Path to the symlink.
The group specified by name or number.
Returns TRUE on success or FALSE on failure.
Example #1 Changing the group of a symbolic link
$target = 'output.php';
$link = 'output.html';
Note: This function will not work on remote files as the file to be examined must be accessible via the server's filesystem.
Note: When safe mode is enabled, PHP checks whether the files or directories being operated upon have the same UID (owner) as the script that is being executed.
Note: This function is not implemented on Windows platforms.