Коментарии

Автор:
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
2006-04-25 14:32:10
http://php5.kiev.ua/manual/ru/function.link.html
Автор:
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 
== $val;
        }elseif(
is_file($target)){
           
// Hardlinks link to files in windows
           
exec("fsutil hardlink create $link $target"$lines$val);
            return 
== $val;
        }
       
        return 
false;
    }
}
?>

http://www.sysinternals.com/Utilities/Junction.html
2006-08-02 10:16:51
http://php5.kiev.ua/manual/ru/function.link.html
Автор:
to clarify:

in unix/linux:
hardlinks (by this function) cannot go across different filesystems.
softlinks can point anywhere.

in linux, hardlinking to directory is not permited.
2009-10-16 04:54:56
http://php5.kiev.ua/manual/ru/function.link.html
In at least php-5.3 (linux-2.6.38.6) a process owned by apache could make a link() in a directory owned by apache, to a file owned by webmaster to which it had group read permissions. In php-7.0 (linux-4.13.16) that results in a "permission denied". Either the target file must be owned by apache or one must use copy() instead (so that ownership changes to apache).
2018-07-14 22:17:38
http://php5.kiev.ua/manual/ru/function.link.html

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