filegroup — Retrieves a file's group ID.
File group ID; FALSE on error
Returns the group ID of the specified file. This function
doesn't produce meaningful results on systems not
supporting UNIX-like filesystems. Note: The results of
this function are cached. See clearstatcache() for details.
Example 313. Print the group
ID of a file
$filegroup = filegroup("myfile");
PHP Functions Essential Reference. Copyright © 2002 by New Riders Publishing
(Authors: Zak Greant, Graeme Merrall, Torben Wilson, Brett Michlitsch).
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