return value of fileperms()

[trustle]

the values of fileperms() are 17901, 16895, etc.
what do those integers mean?
is there any relations between those integers and the second argument of chmod(), such as 0777?

[LordShryku]

It's not related to the numbers, but instead the letters (rwx, owner/group/world). You can use this to convert it to those numbers:

$perms = base_convert(fileperms($filename), 10, 8);
$perms = substr($perms, (strlen($perms) - 3));