Usage and Examples of PHP filegroup() Function

PHP Filesystem Reference Manual

The filegroup() function can return the group ID of the specified file. If successful, the function can return the ID of the group to which the specified file belongs. If it fails, it returns false.

Syntax

int filegroup ( string $filename )

This function cannot be run on Windows systems. To get the ID of the group to which the file belongs, the group ID is returned in numeric format, and it can be parsed into a group name using posix_getgrgid().

Online Example

<?php
　　　$filename = "sample.txt";
　　　echo filegroup($filename);
?>

Output Result

0

PHP Filesystem Reference Manual