note 48168 added to function.is-link

I feel sorry to ask this, but I need an explanation, what a "symbolic link" is. this is the only difference I found to is_file() . ---- Manual Page -- http://www.php.net/manual/en/function.is-link.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+48168 Delete -- http://master.php.net/manage/user-notes.php?action=delete+48168&report=yes Reason: bad code -- http://master.php.net/manage/user-notes.php?action=delete+48168&report=yes&reason=bad+code Reason: spam -- http://master.php.net/manage/user-notes.php?action=delete+48168&report=yes&reason=spam Reason: useless example -- http://master.php.net/manage/user-notes.php?action=delete+48168&report=yes&reason=useless+example Reason: contains commercial links -- http://master.php.net/manage/user-notes.php?action=delete+48168&report=yes&reason=contains+commercial+links Reason: useless note -- http://master.php.net/manage/user-notes.php?action=delete+48168&report=yes&reason=useless+note Reject -- http://master.php.net/manage/user-notes.php?action=reject+48168&report=yes Search -- http://master.php.net/manage/user-notes.php