note 83705 added to function.realpath

I made this function so that I could see if a user was trying to go above the current directory. My top dir: /var/www/dir/ User wanted /var/www/ This comes in handy when you're making a php explorer/filemanager and you want your files in the directory above to be private. Here it is <?php //usage //$dir is the dir you are in //$dir_top is the highest dir allowed. //example /* if(above_dir('../', '/var/www/filemgr')) die('Not allowed. Please stick to your directories'); */ function above_dir($dir, $dir_top){ if($dir == $dir_top) return false; $dir = realpath($dir); $dir_top = realpath($dir_top); $dir = count(explode('/', $dir)); $dir_top = count(explode('/', $dir_top)); if($dir <= $dir_top){ return true; }else{ return false; } } ?> ---- Server IP: 212.63.193.10 Probable Submitter: 81.225.116.152 ---- Manual Page -- http://www.php.net/manual/en/function.realpath.php Edit -- https://master.php.net/note/edit/83705 Del: integrated -- https://master.php.net/note/delete/83705/integrated Del: useless -- https://master.php.net/note/delete/83705/useless Del: bad code -- https://master.php.net/note/delete/83705/bad+code Del: spam -- https://master.php.net/note/delete/83705/spam Del: non-english -- https://master.php.net/note/delete/83705/non-english Del: in docs -- https://master.php.net/note/delete/83705/in+docs Del: other reasons-- https://master.php.net/note/delete/83705 Reject -- https://master.php.net/note/reject/83705 Search -- https://master.php.net/manage/user-notes.php