lchown
Be aware that the filesystem of the target and the link must be the same, otherwise the link will fail! (Linking files over different filesystems doesn't work under Unix).
link
(PHP 4, PHP 5)
link — Create a hard link
Description
bool link ( string $target, string $link )link() creates a hard link. Returns TRUE on success or FALSE on failure.
Note: This function will not work on remote files as the file to be examined must be accessible via the servers filesystem.
Note: This function is not implemented on Windows platforms.
See also the symlink() to create soft links, and readlink() along with linkinfo().
add a note
User Contributed Noteslink
root at c-works dot net
05-Jan-2007 09:58
05-Jan-2007 09:58
Jasper Bekkers
02-Aug-2006 02:16
02-Aug-2006 02:16
For a backup utility I needed link-like functionality on a windows system. As it isn't availible on windows, i tried to do it myself with the help of some tools. All you need is junction.exe from sysinternals in your %PATH%.
<?php
if(!function_exists('link')){ // Assume a windows system
function link($target, $link){
if(is_dir($target)){
// junctions link to directories in windows
exec("junction $link $target", $lines, $val);
return 0 == $val;
}elseif(is_file($target)){
// Hardlinks link to files in windows
exec("fsutil hardlink create $link $target", $lines, $val);
return 0 == $val;
}
return false;
}
}
?>
http://www.sysinternals.com/Utilities/Junction.html
Guilherme Garnier
25-Apr-2006 06:32
25-Apr-2006 06:32
I noticed that, differently from Unix ln command, the second parameter can´t be a directory name, i.e., if you want to create a link with the same filename of the target file (obviously on different directories), you must specify the filename on the link parameter.
Example:
Unix ln command:
ln /dir1/file /dir2/ // ok, creates /dir2/file link
PHP link function:
link ("/dir1/file", "/dir2/"); // wrong, gives a "File exists" warning
link ("/dir1/file", "/dir2/file"); // ok, creates /dir2/file link
mmap at upt dot org
15-May-2004 11:28
15-May-2004 11:28
I think kop is confused regarding the semantics of link's argument order. The user's comment states that target should not already exist, suggesting that it is the target that is being created. As with the UNIX hardlink, ln(1), the target is the existing file. I think kop meant to say php's link() will return an error if the second parameter, the link being created, already exists.
Also, as with the UNIX system call link will fail if the link being created exists on a different filesystem.
kop at meme dot com
25-Sep-2003 09:20
25-Sep-2003 09:20
Note that link() will not work if the target already exists, at least as of php 4.1.2.