fileowner
An easy way to calculate fileperms to chmod is this:
substr(decoct(fileperms("test.html")),3);
Displays 666 or 777 (depends on chmod set).
substr(decoct(fileperms("test.html")),2);
Displays 0666 or 0777 and refers immediately to the number set with chmod();
fileperms
(PHP 4, PHP 5)
fileperms — Gets file permissions
Description
int fileperms
( string $filename
)
Gets permissions for the given file.
Parameters
- filename
-
Path to the file.
Return Values
Returns the permissions on the file, or FALSE in case of an error.
Examples
Example #1 Display permissions as an octal value
<?php
echo substr(sprintf('%o', fileperms('/tmp')), -4);
echo substr(sprintf('%o', fileperms('/etc/passwd')), -4);
?>
The above example will output:
1777 0644
Example #2 Display full permissions
<?php
$perms = fileperms('/etc/passwd');
if (($perms & 0xC000) == 0xC000) {
// Socket
$info = 's';
} elseif (($perms & 0xA000) == 0xA000) {
// Symbolic Link
$info = 'l';
} elseif (($perms & 0x8000) == 0x8000) {
// Regular
$info = '-';
} elseif (($perms & 0x6000) == 0x6000) {
// Block special
$info = 'b';
} elseif (($perms & 0x4000) == 0x4000) {
// Directory
$info = 'd';
} elseif (($perms & 0x2000) == 0x2000) {
// Character special
$info = 'c';
} elseif (($perms & 0x1000) == 0x1000) {
// FIFO pipe
$info = 'p';
} else {
// Unknown
$info = 'u';
}
// Owner
$info .= (($perms & 0x0100) ? 'r' : '-');
$info .= (($perms & 0x0080) ? 'w' : '-');
$info .= (($perms & 0x0040) ?
(($perms & 0x0800) ? 's' : 'x' ) :
(($perms & 0x0800) ? 'S' : '-'));
// Group
$info .= (($perms & 0x0020) ? 'r' : '-');
$info .= (($perms & 0x0010) ? 'w' : '-');
$info .= (($perms & 0x0008) ?
(($perms & 0x0400) ? 's' : 'x' ) :
(($perms & 0x0400) ? 'S' : '-'));
// World
$info .= (($perms & 0x0004) ? 'r' : '-');
$info .= (($perms & 0x0002) ? 'w' : '-');
$info .= (($perms & 0x0001) ?
(($perms & 0x0200) ? 't' : 'x' ) :
(($perms & 0x0200) ? 'T' : '-'));
echo $info;
?>
The above example will output:
-rw-r--r--
Notes
Note: The results of this function are cached. See clearstatcache() for more details.
Tip
As of PHP 5.0.0, this function can also be used with some URL wrappers. Refer to List of Supported Protocols/Wrappers for a listing of which wrappers support stat() family of functionality.
add a note
User Contributed Notesfileperms
MartinAngermeier at gmx dot net
29-Oct-2008 05:37
29-Oct-2008 05:37
eelco
10-Jul-2007 05:21
10-Jul-2007 05:21
If you only want the permissions (lowest three octal numbers) you can use a bitwise AND to mask the bits:
<?php
fileperms($file) & 511;
?>
paul2712 at gmail dot com
02-Jun-2007 12:08
02-Jun-2007 12:08
Do not forget: clearstatcache();
==============================
When ever you make a:
mkdir($dstdir, 0770 ))
or a:
chmod($dstdir, 0774 );
You have to call:
clearstatcache();
before you can call:
fileperms($dstdir);
chinello at gmail dot com
25-Apr-2007 12:43
25-Apr-2007 12:43
On Linux (not tested on Windows), if you want a chmod-like permissions, you can use this function:
<?php
function file_perms($file, $octal = false)
{
if(!file_exists($file)) return false;
$perms = fileperms($file);
$cut = $octal ? 2 : 3;
return substr(decoct($perms), $cut);
}
?>
Using it:
$ touch foo.bar
$ chmod 0754 foo.bar
<?php
echo file_perms('foo.bar'); // prints: 754
echo file_perms('foo.bar', true); // prints 0754
?>