REQUEST/GET problem

Hello,
please i want ask if i upload file in this name on server all is ok 
__

Mt%252520Picture%252520Janina%a.jpg 
__

and after use script for load var 

      while( $entry = $getdir->read() ) {
        if ($entry!= '.' && $entry!= '..' && $entry!= 'index.php' && $entry!='default.php' && $entry!='.htaccess')  {
          $entries[] = $entry;
        }
      }


and after make link
<a href="' . $mylink . '&file=' . $file . '">


and after click on this link...and  i have problem file in Adress line is OK but request is diferent if i use urldecode or urlencode or not use, is problem i try ask on other site and i havent any answer. Please i want ask here where is problem thanks a lot for any answer. And sorry for my bad english.

Mt%252520Picture%252520Janina%a.jpg  // original
Mt%252520Picture%252520Janina%25a.jpg 
Mt%20Picture%20Janina%a.jpg 
Mt%2520Picture%2520Janina%a.jpg