<?php
$info = new SplFileInfo('example.jpg');
echo info->getFilename() . ' belongs to owner id ' . $info->getOwner() . "\n";
print_r(posix_getpwuid($info->getOwner()));
?>
example.jpg belongs to user id 501
Array
(
[name] => tom
[passwd] => x
[uid] => 501
[gid] => 42
[gecos] => Tom Cat
[dir] => /home/tom
[shell] => /bin/bash
)