phpeveryday.com

<?php
$f = "test.txt";

// statistic
$stat = stat($f);
print_r($stat);

?>

Numeric	Associatif	Description
0	dev	device number
1	ino	inode number
2	mode	inode protection mode
3	nlink	number of links
4	uid	userid of owner
5	gid	groupid of owner
6	rdev	device type, if inode device *
7	size	size in bytes
8	atime	time of last access (unix timestamp)
9	mtime	time of last modification (unix timestamp)
10	ctime	time of last change (unix timestamp)
11	blksize	blocksize of filesystem IO *
12	blocks	number of blocks allocated